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[PATCH openEuler-1.0-LTS v4 00/10] CVE-2026-31431
by GONG Ruiqi 30 Apr '26

30 Apr '26

Douya Le (1): crypto: algif_aead - snapshot IV for async AEAD requests Eric Biggers (3): crypto: scatterwalk - Backport memcpy_sglist() crypto: algif_aead - use memcpy_sglist() instead of null skcipher crypto: authenc - use memcpy_sglist() instead of null skcipher Herbert Xu (5): crypto: algif_aead - Revert to operating out-of-place crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption crypto: authencesn - Fix src offset when decrypting in-place crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl crypto: algif_aead - Fix minimum RX size check for decryption Randy Dunlap (1): crypto: doc - fix kernel-doc notation in chacha.c and af_alg.c crypto/Kconfig | 2 - crypto/af_alg.c | 138 +++++++++++------------- crypto/algif_aead.c | 203 ++++++++--------------------------- crypto/algif_skcipher.c | 6 +- crypto/authenc.c | 32 +----- crypto/authencesn.c | 84 ++++++--------- crypto/scatterwalk.c | 98 +++++++++++++++++ include/crypto/if_alg.h | 5 +- include/crypto/scatterwalk.h | 32 ++++++ 9 files changed, 270 insertions(+), 330 deletions(-) -- 2.43.0

2 11

[PATCH openEuler-1.0-LTS v3 00/10] CVE-2026-31431
by GONG Ruiqi 30 Apr '26

30 Apr '26

Douya Le (1): crypto: algif_aead - snapshot IV for async AEAD requests Eric Biggers (3): crypto: scatterwalk - Backport memcpy_sglist() crypto: algif_aead - use memcpy_sglist() instead of null skcipher crypto: authenc - use memcpy_sglist() instead of null skcipher Herbert Xu (5): crypto: algif_aead - Revert to operating out-of-place crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption crypto: authencesn - Fix src offset when decrypting in-place crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl crypto: algif_aead - Fix minimum RX size check for decryption Randy Dunlap (1): crypto: doc - fix kernel-doc notation in chacha.c and af_alg.c crypto/Kconfig | 2 - crypto/af_alg.c | 138 +++++++++++------------- crypto/algif_aead.c | 203 ++++++++--------------------------- crypto/algif_skcipher.c | 6 +- crypto/authenc.c | 32 +----- crypto/authencesn.c | 84 ++++++--------- crypto/scatterwalk.c | 98 +++++++++++++++++ include/crypto/if_alg.h | 5 +- include/crypto/scatterwalk.h | 32 ++++++ 9 files changed, 270 insertions(+), 330 deletions(-) -- 2.43.0

2 12

[PATCH openEuler-1.0-LTS 00/10] CVE-2026-31431
by GONG Ruiqi 30 Apr '26

30 Apr '26

Douya Le (1): crypto: algif_aead - snapshot IV for async AEAD requests Eric Biggers (3): crypto: scatterwalk - Backport memcpy_sglist() crypto: algif_aead - use memcpy_sglist() instead of null skcipher crypto: authenc - use memcpy_sglist() instead of null skcipher Herbert Xu (5): crypto: algif_aead - Revert to operating out-of-place crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption crypto: authencesn - Fix src offset when decrypting in-place crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl crypto: algif_aead - Fix minimum RX size check for decryption Randy Dunlap (1): crypto: doc - fix kernel-doc notation in chacha.c and af_alg.c crypto/Kconfig | 2 - crypto/af_alg.c | 138 +++++++++++------------- crypto/algif_aead.c | 203 ++++++++--------------------------- crypto/algif_skcipher.c | 6 +- crypto/authenc.c | 32 +----- crypto/authencesn.c | 84 ++++++--------- crypto/scatterwalk.c | 98 +++++++++++++++++ include/crypto/if_alg.h | 5 +- include/crypto/scatterwalk.h | 32 ++++++ 9 files changed, 270 insertions(+), 330 deletions(-) -- 2.43.0

2 11

[PATCH openEuler-1.0-LTS 00/10] CVE-2026-31431
by GONG Ruiqi 30 Apr '26

30 Apr '26

CVE-2026-31431 Douya Le (1): crypto: algif_aead - snapshot IV for async AEAD requests Eric Biggers (3): crypto: scatterwalk - Backport memcpy_sglist() crypto: algif_aead - use memcpy_sglist() instead of null skcipher crypto: authenc - use memcpy_sglist() instead of null skcipher Herbert Xu (5): crypto: algif_aead - Revert to operating out-of-place crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption crypto: authencesn - Fix src offset when decrypting in-place crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl crypto: algif_aead - Fix minimum RX size check for decryption Randy Dunlap (1): crypto: doc - fix kernel-doc notation in chacha.c and af_alg.c crypto/Kconfig | 2 - crypto/af_alg.c | 138 +++++++++++------------- crypto/algif_aead.c | 203 ++++++++--------------------------- crypto/algif_skcipher.c | 6 +- crypto/authenc.c | 32 +----- crypto/authencesn.c | 84 ++++++--------- crypto/scatterwalk.c | 98 +++++++++++++++++ include/crypto/if_alg.h | 5 +- include/crypto/scatterwalk.h | 32 ++++++ 9 files changed, 270 insertions(+), 330 deletions(-) -- 2.43.0

2 11

[PATCH OLK-6.6 0/8] Fix CVE-2026-31431
by Tengda Wu 30 Apr '26

30 Apr '26

fix CVE-2026-31431. Douya Le (1): crypto: algif_aead - snapshot IV for async AEAD requests Eric Biggers (3): crypto: scatterwalk - Backport memcpy_sglist() crypto: algif_aead - use memcpy_sglist() instead of null skcipher crypto: authenc - use memcpy_sglist() instead of null skcipher Herbert Xu (4): crypto: algif_aead - Revert to operating out-of-place crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption crypto: authencesn - Fix src offset when decrypting in-place crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl crypto/Kconfig | 2 - crypto/af_alg.c | 51 ++------- crypto/algif_aead.c | 203 +++++++---------------------------- crypto/algif_skcipher.c | 6 +- crypto/authenc.c | 32 +----- crypto/authencesn.c | 84 ++++++--------- crypto/scatterwalk.c | 94 ++++++++++++++++ include/crypto/if_alg.h | 5 +- include/crypto/scatterwalk.h | 31 ++++++ 9 files changed, 215 insertions(+), 293 deletions(-) -- 2.34.1

2 9

[PATCH OLK-5.10 00/11] Fix CVE-2026-31431
by Tengda Wu 30 Apr '26

30 Apr '26

fix CVE-2026-31431. Douya Le (1): crypto: algif_aead - snapshot IV for async AEAD requests Eric Biggers (3): crypto: scatterwalk - Backport memcpy_sglist() crypto: algif_aead - use memcpy_sglist() instead of null skcipher crypto: authenc - use memcpy_sglist() instead of null skcipher Herbert Xu (5): crypto: algif_aead - Revert to operating out-of-place crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption crypto: authencesn - Fix src offset when decrypting in-place crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl crypto: algif_aead - Fix minimum RX size check for decryption Randy Dunlap (1): crypto: doc - fix kernel-doc notation in chacha.c and af_alg.c Taeyang Lee (1): crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec crypto/Kconfig | 2 - crypto/af_alg.c | 137 +++++++++++------------ crypto/algif_aead.c | 203 ++++++++--------------------------- crypto/algif_skcipher.c | 6 +- crypto/authenc.c | 32 +----- crypto/authencesn.c | 88 +++++++-------- crypto/scatterwalk.c | 98 +++++++++++++++++ include/crypto/if_alg.h | 5 +- include/crypto/scatterwalk.h | 32 ++++++ lib/crypto/chacha.c | 4 +- 10 files changed, 277 insertions(+), 330 deletions(-) -- 2.34.1

2 13

[PATCH openEuler-1.0-LTS] crypto: algif_aead - Revert to operating out-of-place
by Yi Yang 30 Apr '26

30 Apr '26

From: Herbert Xu <herbert(a)gondor.apana.org.au> mainline inclusion from mainline-v7.0-rc7 commit a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5 category: bugfix bugzilla: https://atomgit.com/src-openeuler/kernel/issues/14174 CVE: CVE-2026-31431 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly. Fixes: 72548b093ee3 ("crypto: algif_aead - copy AAD from src to dst") Reported-by: Taeyang Lee <0wn(a)theori.io> Signed-off-by: Herbert Xu <herbert(a)gondor.apana.org.au> Conflicts: crypto/af_alg.c crypto/algif_aead.c crypto/algif_skcipher.c include/crypto/if_alg.h [Commit 99bd99d3e3a7 ("crypto: algif_skcipher - Fix stream cipher chaining") was not merged.Context conflicts.] Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- crypto/af_alg.c | 48 ++++-------------- crypto/algif_aead.c | 108 ++++++++-------------------------------- crypto/algif_skcipher.c | 6 +-- include/crypto/if_alg.h | 5 +- 4 files changed, 37 insertions(+), 130 deletions(-) diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 69c21b047566..1d66daf3c735 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -525,15 +525,13 @@ EXPORT_SYMBOL_GPL(af_alg_alloc_tsgl); /** * aead_count_tsgl - Count number of TX SG entries * - * The counting starts from the beginning of the SGL to @bytes. If - * an offset is provided, the counting of the SG entries starts at the offset. + * The counting starts from the beginning of the SGL to @bytes. * * @sk socket of connection to user space * @bytes Count the number of SG entries holding given number of bytes. - * @offset Start the counting of SG entries from the given offset. * @return Number of TX SG entries found given the constraints */ -unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes, size_t offset) +unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes) { struct alg_sock *ask = alg_sk(sk); struct af_alg_ctx *ctx = ask->private; @@ -548,25 +546,12 @@ unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes, size_t offset) struct scatterlist *sg = sgl->sg; for (i = 0; i < sgl->cur; i++) { - size_t bytes_count; - /* Skip offset */ - if (offset >= sg[i].length) { - offset -= sg[i].length; - bytes -= sg[i].length; - continue; - } - - bytes_count = sg[i].length - offset; - - offset = 0; sgl_count++; - - /* If we have seen requested number of bytes, stop */ - if (bytes_count >= bytes) + if (sg[i].length >= bytes) return sgl_count; - bytes -= bytes_count; + bytes -= sg[i].length; } } @@ -578,19 +563,14 @@ EXPORT_SYMBOL_GPL(af_alg_count_tsgl); * aead_pull_tsgl - Release the specified buffers from TX SGL * * If @dst is non-null, reassign the pages to dst. The caller must release - * the pages. If @dst_offset is given only reassign the pages to @dst starting - * at the @dst_offset (byte). The caller must ensure that @dst is large - * enough (e.g. by using af_alg_count_tsgl with the same offset). + * the pages. * * @sk socket of connection to user space * @used Number of bytes to pull from TX SGL * @dst If non-NULL, buffer is reassigned to dst SGL instead of releasing. The * caller must release the buffers in dst. - * @dst_offset Reassign the TX SGL from given offset. All buffers before - * reaching the offset is released. */ -void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst, - size_t dst_offset) +void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst) { struct alg_sock *ask = alg_sk(sk); struct af_alg_ctx *ctx = ask->private; @@ -615,18 +595,10 @@ void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst, * SG entries in dst. */ if (dst) { - if (dst_offset >= plen) { - /* discard page before offset */ - dst_offset -= plen; - } else { - /* reassign page to dst after offset */ - get_page(page); - sg_set_page(dst + j, page, - plen - dst_offset, - sg[i].offset + dst_offset); - dst_offset = 0; - j++; - } + /* reassign page to dst after offset */ + get_page(page); + sg_set_page(dst + j, page, plen, sg[i].offset); + j++; } sg[i].length -= plen; diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c index 43a861a79209..3cb0cb6b815a 100644 --- a/crypto/algif_aead.c +++ b/crypto/algif_aead.c @@ -30,7 +30,6 @@ #include <crypto/internal/aead.h> #include <crypto/scatterwalk.h> #include <crypto/if_alg.h> -#include <crypto/skcipher.h> #include <crypto/null.h> #include <linux/init.h> #include <linux/list.h> @@ -100,9 +99,8 @@ static int _aead_recvmsg(struct socket *sock, struct msghdr *msg, struct aead_tfm *aeadc = pask->private; struct crypto_aead *tfm = aeadc->aead; struct crypto_skcipher *null_tfm = aeadc->null_tfm; - unsigned int i, as = crypto_aead_authsize(tfm); + unsigned int as = crypto_aead_authsize(tfm); struct af_alg_async_req *areq; - struct af_alg_tsgl *tsgl, *tmp; struct scatterlist *rsgl_src, *tsgl_src = NULL; int err = 0; size_t used = 0; /* [in] TX bufs to be en/decrypted */ @@ -182,23 +180,24 @@ static int _aead_recvmsg(struct socket *sock, struct msghdr *msg, outlen -= less; } + /* + * Create a per request TX SGL for this request which tracks the + * SG entries from the global TX SGL. + */ processed = used + ctx->aead_assoclen; - list_for_each_entry_safe(tsgl, tmp, &ctx->tsgl_list, list) { - for (i = 0; i < tsgl->cur; i++) { - struct scatterlist *process_sg = tsgl->sg + i; - - if (!(process_sg->length) || !sg_page(process_sg)) - continue; - tsgl_src = process_sg; - break; - } - if (tsgl_src) - break; - } - if (processed && !tsgl_src) { - err = -EFAULT; + areq->tsgl_entries = af_alg_count_tsgl(sk, processed); + if (!areq->tsgl_entries) + areq->tsgl_entries = 1; + areq->tsgl = sock_kmalloc(sk, array_size(sizeof(*areq->tsgl), + areq->tsgl_entries), + GFP_KERNEL); + if (!areq->tsgl) { + err = -ENOMEM; goto free; } + sg_init_table(areq->tsgl, areq->tsgl_entries); + af_alg_pull_tsgl(sk, processed, areq->tsgl); + tsgl_src = areq->tsgl; /* * Copy of AAD from source to destination @@ -207,81 +206,18 @@ static int _aead_recvmsg(struct socket *sock, struct msghdr *msg, * when user space uses an in-place cipher operation, the kernel * will copy the data as it does not see whether such in-place operation * is initiated. - * - * To ensure efficiency, the following implementation ensure that the - * ciphers are invoked to perform a crypto operation in-place. This - * is achieved by memory management specified as follows. */ /* Use the RX SGL as source (and destination) for crypto op. */ rsgl_src = areq->first_rsgl.sgl.sg; - if (ctx->enc) { - /* - * Encryption operation - The in-place cipher operation is - * achieved by the following operation: - * - * TX SGL: AAD || PT - * | | - * | copy | - * v v - * RX SGL: AAD || PT || Tag - */ - err = crypto_aead_copy_sgl(null_tfm, tsgl_src, - areq->first_rsgl.sgl.sg, processed); - if (err) - goto free; - af_alg_pull_tsgl(sk, processed, NULL, 0); - } else { - /* - * Decryption operation - To achieve an in-place cipher - * operation, the following SGL structure is used: - * - * TX SGL: AAD || CT || Tag - * | | ^ - * | copy | | Create SGL link. - * v v | - * RX SGL: AAD || CT ----+ - */ - - /* Copy AAD || CT to RX SGL buffer for in-place operation. */ - err = crypto_aead_copy_sgl(null_tfm, tsgl_src, - areq->first_rsgl.sgl.sg, outlen); - if (err) - goto free; - - /* Create TX SGL for tag and chain it to RX SGL. */ - areq->tsgl_entries = af_alg_count_tsgl(sk, processed, - processed - as); - if (!areq->tsgl_entries) - areq->tsgl_entries = 1; - areq->tsgl = sock_kmalloc(sk, array_size(sizeof(*areq->tsgl), - areq->tsgl_entries), - GFP_KERNEL); - if (!areq->tsgl) { - err = -ENOMEM; - goto free; - } - sg_init_table(areq->tsgl, areq->tsgl_entries); - - /* Release TX SGL, except for tag data and reassign tag data. */ - af_alg_pull_tsgl(sk, processed, areq->tsgl, processed - as); - - /* chain the areq TX SGL holding the tag with RX SGL */ - if (usedpages) { - /* RX SGL present */ - struct af_alg_sgl *sgl_prev = &areq->last_rsgl->sgl; - - sg_unmark_end(sgl_prev->sg + sgl_prev->npages - 1); - sg_chain(sgl_prev->sg, sgl_prev->npages + 1, - areq->tsgl); - } else - /* no RX SGL present (e.g. authentication only) */ - rsgl_src = areq->tsgl; - } + err = crypto_aead_copy_sgl(null_tfm, tsgl_src, + areq->first_rsgl.sgl.sg, ctx->aead_assoclen); + if (err) + goto free; /* Initialize the crypto operation */ - aead_request_set_crypt(&areq->cra_u.aead_req, rsgl_src, + aead_request_set_crypt(&areq->cra_u.aead_req, tsgl_src, areq->first_rsgl.sgl.sg, used, ctx->iv); aead_request_set_ad(&areq->cra_u.aead_req, ctx->aead_assoclen); aead_request_set_tfm(&areq->cra_u.aead_req, tfm); @@ -536,7 +472,7 @@ static void aead_sock_destruct(struct sock *sk) struct crypto_aead *tfm = aeadc->aead; unsigned int ivlen = crypto_aead_ivsize(tfm); - af_alg_pull_tsgl(sk, ctx->used, NULL, 0); + af_alg_pull_tsgl(sk, ctx->used, NULL); sock_kzfree_s(sk, ctx->iv, ivlen); sock_kfree_s(sk, ctx, ctx->len); af_alg_release_parent(sk); diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c index c5813e14e905..e4c3aab2de4e 100644 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -97,7 +97,7 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg, * Create a per request TX SGL for this request which tracks the * SG entries from the global TX SGL. */ - areq->tsgl_entries = af_alg_count_tsgl(sk, len, 0); + areq->tsgl_entries = af_alg_count_tsgl(sk, len); if (!areq->tsgl_entries) areq->tsgl_entries = 1; areq->tsgl = sock_kmalloc(sk, array_size(sizeof(*areq->tsgl), @@ -108,7 +108,7 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg, goto free; } sg_init_table(areq->tsgl, areq->tsgl_entries); - af_alg_pull_tsgl(sk, len, areq->tsgl, 0); + af_alg_pull_tsgl(sk, len, areq->tsgl); /* Initialize the crypto operation */ skcipher_request_set_tfm(&areq->cra_u.skcipher_req, tfm); @@ -328,7 +328,7 @@ static void skcipher_sock_destruct(struct sock *sk) struct alg_sock *pask = alg_sk(psk); struct crypto_skcipher *tfm = pask->private; - af_alg_pull_tsgl(sk, ctx->used, NULL, 0); + af_alg_pull_tsgl(sk, ctx->used, NULL); sock_kzfree_s(sk, ctx->iv, crypto_skcipher_ivsize(tfm)); sock_kfree_s(sk, ctx, ctx->len); af_alg_release_parent(sk); diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h index ca3cd8118639..17447b4600f9 100644 --- a/include/crypto/if_alg.h +++ b/include/crypto/if_alg.h @@ -238,9 +238,8 @@ static inline bool af_alg_readable(struct sock *sk) } int af_alg_alloc_tsgl(struct sock *sk); -unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes, size_t offset); -void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst, - size_t dst_offset); +unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes); +void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst); void af_alg_free_areq_sgls(struct af_alg_async_req *areq); int af_alg_wait_for_wmem(struct sock *sk, unsigned int flags); void af_alg_wmem_wakeup(struct sock *sk); -- 2.25.1

2 2

[PATCH OLK-5.10] crypto: algif_aead - Revert to operating out-of-place
by Yi Yang 30 Apr '26

30 Apr '26

From: Herbert Xu <herbert(a)gondor.apana.org.au> mainline inclusion from mainline-v7.0-rc7 commit a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5 category: bugfix bugzilla: https://atomgit.com/src-openeuler/kernel/issues/14174 CVE: CVE-2026-31431 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly. Fixes: 72548b093ee3 ("crypto: algif_aead - copy AAD from src to dst") Reported-by: Taeyang Lee <0wn(a)theori.io> Signed-off-by: Herbert Xu <herbert(a)gondor.apana.org.au> Conflicts: crypto/af_alg.c crypto/algif_aead.c crypto/algif_skcipher.c include/crypto/if_alg.h [Commit 99bd99d3e3a7 ("crypto: algif_skcipher - Fix stream cipher chaining") was not merged.Context conflicts.] Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- crypto/af_alg.c | 49 ++++-------------- crypto/algif_aead.c | 109 +++++++++------------------------------- crypto/algif_skcipher.c | 6 +-- include/crypto/if_alg.h | 5 +- 4 files changed, 38 insertions(+), 131 deletions(-) diff --git a/crypto/af_alg.c b/crypto/af_alg.c index b7e132967650..7fc775249ae3 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -527,15 +527,13 @@ static int af_alg_alloc_tsgl(struct sock *sk) /** * aead_count_tsgl - Count number of TX SG entries * - * The counting starts from the beginning of the SGL to @bytes. If - * an offset is provided, the counting of the SG entries starts at the offset. + * The counting starts from the beginning of the SGL to @bytes. * * @sk socket of connection to user space * @bytes Count the number of SG entries holding given number of bytes. - * @offset Start the counting of SG entries from the given offset. * @return Number of TX SG entries found given the constraints */ -unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes, size_t offset) +unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes) { const struct alg_sock *ask = alg_sk(sk); const struct af_alg_ctx *ctx = ask->private; @@ -550,25 +548,11 @@ unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes, size_t offset) const struct scatterlist *sg = sgl->sg; for (i = 0; i < sgl->cur; i++) { - size_t bytes_count; - - /* Skip offset */ - if (offset >= sg[i].length) { - offset -= sg[i].length; - bytes -= sg[i].length; - continue; - } - - bytes_count = sg[i].length - offset; - - offset = 0; sgl_count++; - - /* If we have seen requested number of bytes, stop */ - if (bytes_count >= bytes) + if (sg[i].length >= bytes) return sgl_count; - bytes -= bytes_count; + bytes -= sg[i].length; } } @@ -580,19 +564,14 @@ EXPORT_SYMBOL_GPL(af_alg_count_tsgl); * aead_pull_tsgl - Release the specified buffers from TX SGL * * If @dst is non-null, reassign the pages to dst. The caller must release - * the pages. If @dst_offset is given only reassign the pages to @dst starting - * at the @dst_offset (byte). The caller must ensure that @dst is large - * enough (e.g. by using af_alg_count_tsgl with the same offset). + * the pages. * * @sk socket of connection to user space * @used Number of bytes to pull from TX SGL * @dst If non-NULL, buffer is reassigned to dst SGL instead of releasing. The * caller must release the buffers in dst. - * @dst_offset Reassign the TX SGL from given offset. All buffers before - * reaching the offset is released. */ -void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst, - size_t dst_offset) +void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst) { struct alg_sock *ask = alg_sk(sk); struct af_alg_ctx *ctx = ask->private; @@ -617,18 +596,10 @@ void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst, * SG entries in dst. */ if (dst) { - if (dst_offset >= plen) { - /* discard page before offset */ - dst_offset -= plen; - } else { - /* reassign page to dst after offset */ - get_page(page); - sg_set_page(dst + j, page, - plen - dst_offset, - sg[i].offset + dst_offset); - dst_offset = 0; - j++; - } + /* reassign page to dst after offset */ + get_page(page); + sg_set_page(dst + j, page, plen, sg[i].offset); + j++; } sg[i].length -= plen; diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c index 42493b4d8ce4..5d98db4e7558 100644 --- a/crypto/algif_aead.c +++ b/crypto/algif_aead.c @@ -26,7 +26,6 @@ #include <crypto/internal/aead.h> #include <crypto/scatterwalk.h> #include <crypto/if_alg.h> -#include <crypto/skcipher.h> #include <crypto/null.h> #include <linux/init.h> #include <linux/list.h> @@ -96,9 +95,8 @@ static int _aead_recvmsg(struct socket *sock, struct msghdr *msg, struct aead_tfm *aeadc = pask->private; struct crypto_aead *tfm = aeadc->aead; struct crypto_sync_skcipher *null_tfm = aeadc->null_tfm; - unsigned int i, as = crypto_aead_authsize(tfm); + unsigned int as = crypto_aead_authsize(tfm); struct af_alg_async_req *areq; - struct af_alg_tsgl *tsgl, *tmp; struct scatterlist *rsgl_src, *tsgl_src = NULL; int err = 0; size_t used = 0; /* [in] TX bufs to be en/decrypted */ @@ -178,23 +176,24 @@ static int _aead_recvmsg(struct socket *sock, struct msghdr *msg, outlen -= less; } + /* + * Create a per request TX SGL for this request which tracks the + * SG entries from the global TX SGL. + */ processed = used + ctx->aead_assoclen; - list_for_each_entry_safe(tsgl, tmp, &ctx->tsgl_list, list) { - for (i = 0; i < tsgl->cur; i++) { - struct scatterlist *process_sg = tsgl->sg + i; - - if (!(process_sg->length) || !sg_page(process_sg)) - continue; - tsgl_src = process_sg; - break; - } - if (tsgl_src) - break; - } - if (processed && !tsgl_src) { - err = -EFAULT; + areq->tsgl_entries = af_alg_count_tsgl(sk, processed); + if (!areq->tsgl_entries) + areq->tsgl_entries = 1; + areq->tsgl = sock_kmalloc(sk, array_size(sizeof(*areq->tsgl), + areq->tsgl_entries), + GFP_KERNEL); + if (!areq->tsgl) { + err = -ENOMEM; goto free; } + sg_init_table(areq->tsgl, areq->tsgl_entries); + af_alg_pull_tsgl(sk, processed, areq->tsgl); + tsgl_src = areq->tsgl; /* * Copy of AAD from source to destination @@ -203,81 +202,19 @@ static int _aead_recvmsg(struct socket *sock, struct msghdr *msg, * when user space uses an in-place cipher operation, the kernel * will copy the data as it does not see whether such in-place operation * is initiated. - * - * To ensure efficiency, the following implementation ensure that the - * ciphers are invoked to perform a crypto operation in-place. This - * is achieved by memory management specified as follows. */ /* Use the RX SGL as source (and destination) for crypto op. */ rsgl_src = areq->first_rsgl.sgl.sg; - if (ctx->enc) { - /* - * Encryption operation - The in-place cipher operation is - * achieved by the following operation: - * - * TX SGL: AAD || PT - * | | - * | copy | - * v v - * RX SGL: AAD || PT || Tag - */ - err = crypto_aead_copy_sgl(null_tfm, tsgl_src, - areq->first_rsgl.sgl.sg, processed); - if (err) - goto free; - af_alg_pull_tsgl(sk, processed, NULL, 0); - } else { - /* - * Decryption operation - To achieve an in-place cipher - * operation, the following SGL structure is used: - * - * TX SGL: AAD || CT || Tag - * | | ^ - * | copy | | Create SGL link. - * v v | - * RX SGL: AAD || CT ----+ - */ - - /* Copy AAD || CT to RX SGL buffer for in-place operation. */ - err = crypto_aead_copy_sgl(null_tfm, tsgl_src, - areq->first_rsgl.sgl.sg, outlen); - if (err) - goto free; - - /* Create TX SGL for tag and chain it to RX SGL. */ - areq->tsgl_entries = af_alg_count_tsgl(sk, processed, - processed - as); - if (!areq->tsgl_entries) - areq->tsgl_entries = 1; - areq->tsgl = sock_kmalloc(sk, array_size(sizeof(*areq->tsgl), - areq->tsgl_entries), - GFP_KERNEL); - if (!areq->tsgl) { - err = -ENOMEM; - goto free; - } - sg_init_table(areq->tsgl, areq->tsgl_entries); - - /* Release TX SGL, except for tag data and reassign tag data. */ - af_alg_pull_tsgl(sk, processed, areq->tsgl, processed - as); - - /* chain the areq TX SGL holding the tag with RX SGL */ - if (usedpages) { - /* RX SGL present */ - struct af_alg_sgl *sgl_prev = &areq->last_rsgl->sgl; - - sg_unmark_end(sgl_prev->sg + sgl_prev->npages - 1); - sg_chain(sgl_prev->sg, sgl_prev->npages + 1, - areq->tsgl); - } else - /* no RX SGL present (e.g. authentication only) */ - rsgl_src = areq->tsgl; - } + err = crypto_aead_copy_sgl(null_tfm, tsgl_src, + areq->first_rsgl.sgl.sg, + ctx->aead_assoclen); + if (err) + goto free; /* Initialize the crypto operation */ - aead_request_set_crypt(&areq->cra_u.aead_req, rsgl_src, + aead_request_set_crypt(&areq->cra_u.aead_req, tsgl_src, areq->first_rsgl.sgl.sg, used, ctx->iv); aead_request_set_ad(&areq->cra_u.aead_req, ctx->aead_assoclen); aead_request_set_tfm(&areq->cra_u.aead_req, tfm); @@ -526,7 +463,7 @@ static void aead_sock_destruct(struct sock *sk) struct crypto_aead *tfm = aeadc->aead; unsigned int ivlen = crypto_aead_ivsize(tfm); - af_alg_pull_tsgl(sk, ctx->used, NULL, 0); + af_alg_pull_tsgl(sk, ctx->used, NULL); sock_kzfree_s(sk, ctx->iv, ivlen); sock_kfree_s(sk, ctx, ctx->len); af_alg_release_parent(sk); diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c index bd9401e37706..edbdc19cdb31 100644 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -95,7 +95,7 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg, * Create a per request TX SGL for this request which tracks the * SG entries from the global TX SGL. */ - areq->tsgl_entries = af_alg_count_tsgl(sk, len, 0); + areq->tsgl_entries = af_alg_count_tsgl(sk, len); if (!areq->tsgl_entries) areq->tsgl_entries = 1; areq->tsgl = sock_kmalloc(sk, array_size(sizeof(*areq->tsgl), @@ -106,7 +106,7 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg, goto free; } sg_init_table(areq->tsgl, areq->tsgl_entries); - af_alg_pull_tsgl(sk, len, areq->tsgl, 0); + af_alg_pull_tsgl(sk, len, areq->tsgl); /* Initialize the crypto operation */ skcipher_request_set_tfm(&areq->cra_u.skcipher_req, tfm); @@ -319,7 +319,7 @@ static void skcipher_sock_destruct(struct sock *sk) struct alg_sock *pask = alg_sk(psk); struct crypto_skcipher *tfm = pask->private; - af_alg_pull_tsgl(sk, ctx->used, NULL, 0); + af_alg_pull_tsgl(sk, ctx->used, NULL); sock_kzfree_s(sk, ctx->iv, crypto_skcipher_ivsize(tfm)); sock_kfree_s(sk, ctx, ctx->len); af_alg_release_parent(sk); diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h index a406e281ae57..719a38d7e8bb 100644 --- a/include/crypto/if_alg.h +++ b/include/crypto/if_alg.h @@ -228,9 +228,8 @@ static inline bool af_alg_readable(struct sock *sk) return PAGE_SIZE <= af_alg_rcvbuf(sk); } -unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes, size_t offset); -void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst, - size_t dst_offset); +unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes); +void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst); void af_alg_wmem_wakeup(struct sock *sk); int af_alg_wait_for_data(struct sock *sk, unsigned flags, unsigned min); int af_alg_sendmsg(struct socket *sock, struct msghdr *msg, size_t size, -- 2.25.1

2 2

[PATCH OLK-6.6] crypto: algif_aead - Revert to operating out-of-place
by Yi Yang 30 Apr '26

30 Apr '26

From: Herbert Xu <herbert(a)gondor.apana.org.au> mainline inclusion from mainline-v7.0-rc7 commit a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5 category: bugfix bugzilla: https://atomgit.com/src-openeuler/kernel/issues/14174 CVE: CVE-2026-31431 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly. Fixes: 72548b093ee3 ("crypto: algif_aead - copy AAD from src to dst") Reported-by: Taeyang Lee <0wn(a)theori.io> Signed-off-by: Herbert Xu <herbert(a)gondor.apana.org.au> Conflicts: crypto/algif_aead.c crypto/algif_skcipher.c [Commit 99bd99d3e3a7 ("crypto: algif_skcipher - Fix stream cipher chaining") was not merged.Context conflicts.] Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- crypto/af_alg.c | 49 ++++-------------- crypto/algif_aead.c | 111 +++++++++------------------------------- crypto/algif_skcipher.c | 6 +-- include/crypto/if_alg.h | 5 +- 4 files changed, 38 insertions(+), 133 deletions(-) diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 55e58dfbcca1..ed8751bb3456 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -634,15 +634,13 @@ static int af_alg_alloc_tsgl(struct sock *sk) /** * af_alg_count_tsgl - Count number of TX SG entries * - * The counting starts from the beginning of the SGL to @bytes. If - * an @offset is provided, the counting of the SG entries starts at the @offset. + * The counting starts from the beginning of the SGL to @bytes. * * @sk: socket of connection to user space * @bytes: Count the number of SG entries holding given number of bytes. - * @offset: Start the counting of SG entries from the given offset. * Return: Number of TX SG entries found given the constraints */ -unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes, size_t offset) +unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes) { const struct alg_sock *ask = alg_sk(sk); const struct af_alg_ctx *ctx = ask->private; @@ -657,25 +655,11 @@ unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes, size_t offset) const struct scatterlist *sg = sgl->sg; for (i = 0; i < sgl->cur; i++) { - size_t bytes_count; - - /* Skip offset */ - if (offset >= sg[i].length) { - offset -= sg[i].length; - bytes -= sg[i].length; - continue; - } - - bytes_count = sg[i].length - offset; - - offset = 0; sgl_count++; - - /* If we have seen requested number of bytes, stop */ - if (bytes_count >= bytes) + if (sg[i].length >= bytes) return sgl_count; - bytes -= bytes_count; + bytes -= sg[i].length; } } @@ -687,19 +671,14 @@ EXPORT_SYMBOL_GPL(af_alg_count_tsgl); * af_alg_pull_tsgl - Release the specified buffers from TX SGL * * If @dst is non-null, reassign the pages to @dst. The caller must release - * the pages. If @dst_offset is given only reassign the pages to @dst starting - * at the @dst_offset (byte). The caller must ensure that @dst is large - * enough (e.g. by using af_alg_count_tsgl with the same offset). + * the pages. * * @sk: socket of connection to user space * @used: Number of bytes to pull from TX SGL * @dst: If non-NULL, buffer is reassigned to dst SGL instead of releasing. The * caller must release the buffers in dst. - * @dst_offset: Reassign the TX SGL from given offset. All buffers before - * reaching the offset is released. */ -void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst, - size_t dst_offset) +void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst) { struct alg_sock *ask = alg_sk(sk); struct af_alg_ctx *ctx = ask->private; @@ -724,18 +703,10 @@ void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst, * SG entries in dst. */ if (dst) { - if (dst_offset >= plen) { - /* discard page before offset */ - dst_offset -= plen; - } else { - /* reassign page to dst after offset */ - get_page(page); - sg_set_page(dst + j, page, - plen - dst_offset, - sg[i].offset + dst_offset); - dst_offset = 0; - j++; - } + /* reassign page to dst after offset */ + get_page(page); + sg_set_page(dst + j, page, plen, sg[i].offset); + j++; } sg[i].length -= plen; diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c index 7d58cbbce4af..1c6d98b2832b 100644 --- a/crypto/algif_aead.c +++ b/crypto/algif_aead.c @@ -26,7 +26,6 @@ #include <crypto/internal/aead.h> #include <crypto/scatterwalk.h> #include <crypto/if_alg.h> -#include <crypto/skcipher.h> #include <crypto/null.h> #include <linux/init.h> #include <linux/list.h> @@ -96,9 +95,8 @@ static int _aead_recvmsg(struct socket *sock, struct msghdr *msg, struct aead_tfm *aeadc = pask->private; struct crypto_aead *tfm = aeadc->aead; struct crypto_sync_skcipher *null_tfm = aeadc->null_tfm; - unsigned int i, as = crypto_aead_authsize(tfm); + unsigned int as = crypto_aead_authsize(tfm); struct af_alg_async_req *areq; - struct af_alg_tsgl *tsgl, *tmp; struct scatterlist *rsgl_src, *tsgl_src = NULL; int err = 0; size_t used = 0; /* [in] TX bufs to be en/decrypted */ @@ -178,23 +176,24 @@ static int _aead_recvmsg(struct socket *sock, struct msghdr *msg, outlen -= less; } + /* + * Create a per request TX SGL for this request which tracks the + * SG entries from the global TX SGL. + */ processed = used + ctx->aead_assoclen; - list_for_each_entry_safe(tsgl, tmp, &ctx->tsgl_list, list) { - for (i = 0; i < tsgl->cur; i++) { - struct scatterlist *process_sg = tsgl->sg + i; - - if (!(process_sg->length) || !sg_page(process_sg)) - continue; - tsgl_src = process_sg; - break; - } - if (tsgl_src) - break; - } - if (processed && !tsgl_src) { - err = -EFAULT; + areq->tsgl_entries = af_alg_count_tsgl(sk, processed); + if (!areq->tsgl_entries) + areq->tsgl_entries = 1; + areq->tsgl = sock_kmalloc(sk, array_size(sizeof(*areq->tsgl), + areq->tsgl_entries), + GFP_KERNEL); + if (!areq->tsgl) { + err = -ENOMEM; goto free; } + sg_init_table(areq->tsgl, areq->tsgl_entries); + af_alg_pull_tsgl(sk, processed, areq->tsgl); + tsgl_src = areq->tsgl; /* * Copy of AAD from source to destination @@ -203,83 +202,19 @@ static int _aead_recvmsg(struct socket *sock, struct msghdr *msg, * when user space uses an in-place cipher operation, the kernel * will copy the data as it does not see whether such in-place operation * is initiated. - * - * To ensure efficiency, the following implementation ensure that the - * ciphers are invoked to perform a crypto operation in-place. This - * is achieved by memory management specified as follows. */ /* Use the RX SGL as source (and destination) for crypto op. */ rsgl_src = areq->first_rsgl.sgl.sgt.sgl; - if (ctx->enc) { - /* - * Encryption operation - The in-place cipher operation is - * achieved by the following operation: - * - * TX SGL: AAD || PT - * | | - * | copy | - * v v - * RX SGL: AAD || PT || Tag - */ - err = crypto_aead_copy_sgl(null_tfm, tsgl_src, - areq->first_rsgl.sgl.sgt.sgl, - processed); - if (err) - goto free; - af_alg_pull_tsgl(sk, processed, NULL, 0); - } else { - /* - * Decryption operation - To achieve an in-place cipher - * operation, the following SGL structure is used: - * - * TX SGL: AAD || CT || Tag - * | | ^ - * | copy | | Create SGL link. - * v v | - * RX SGL: AAD || CT ----+ - */ - - /* Copy AAD || CT to RX SGL buffer for in-place operation. */ - err = crypto_aead_copy_sgl(null_tfm, tsgl_src, - areq->first_rsgl.sgl.sgt.sgl, - outlen); - if (err) - goto free; - - /* Create TX SGL for tag and chain it to RX SGL. */ - areq->tsgl_entries = af_alg_count_tsgl(sk, processed, - processed - as); - if (!areq->tsgl_entries) - areq->tsgl_entries = 1; - areq->tsgl = sock_kmalloc(sk, array_size(sizeof(*areq->tsgl), - areq->tsgl_entries), - GFP_KERNEL); - if (!areq->tsgl) { - err = -ENOMEM; - goto free; - } - sg_init_table(areq->tsgl, areq->tsgl_entries); - - /* Release TX SGL, except for tag data and reassign tag data. */ - af_alg_pull_tsgl(sk, processed, areq->tsgl, processed - as); - - /* chain the areq TX SGL holding the tag with RX SGL */ - if (usedpages) { - /* RX SGL present */ - struct af_alg_sgl *sgl_prev = &areq->last_rsgl->sgl; - struct scatterlist *sg = sgl_prev->sgt.sgl; - - sg_unmark_end(sg + sgl_prev->sgt.nents - 1); - sg_chain(sg, sgl_prev->sgt.nents + 1, areq->tsgl); - } else - /* no RX SGL present (e.g. authentication only) */ - rsgl_src = areq->tsgl; - } + err = crypto_aead_copy_sgl(null_tfm, tsgl_src, + areq->first_rsgl.sgl.sgt.sgl, + ctx->aead_assoclen); + if (err) + goto free; /* Initialize the crypto operation */ - aead_request_set_crypt(&areq->cra_u.aead_req, rsgl_src, + aead_request_set_crypt(&areq->cra_u.aead_req, tsgl_src, areq->first_rsgl.sgl.sgt.sgl, used, ctx->iv); aead_request_set_ad(&areq->cra_u.aead_req, ctx->aead_assoclen); aead_request_set_tfm(&areq->cra_u.aead_req, tfm); @@ -514,7 +449,7 @@ static void aead_sock_destruct(struct sock *sk) struct crypto_aead *tfm = aeadc->aead; unsigned int ivlen = crypto_aead_ivsize(tfm); - af_alg_pull_tsgl(sk, ctx->used, NULL, 0); + af_alg_pull_tsgl(sk, ctx->used, NULL); sock_kzfree_s(sk, ctx->iv, ivlen); sock_kfree_s(sk, ctx, ctx->len); af_alg_release_parent(sk); diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c index 097ad4f9a077..2ef20d9b3f44 100644 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -95,7 +95,7 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg, * Create a per request TX SGL for this request which tracks the * SG entries from the global TX SGL. */ - areq->tsgl_entries = af_alg_count_tsgl(sk, len, 0); + areq->tsgl_entries = af_alg_count_tsgl(sk, len); if (!areq->tsgl_entries) areq->tsgl_entries = 1; areq->tsgl = sock_kmalloc(sk, array_size(sizeof(*areq->tsgl), @@ -106,7 +106,7 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg, goto free; } sg_init_table(areq->tsgl, areq->tsgl_entries); - af_alg_pull_tsgl(sk, len, areq->tsgl, 0); + af_alg_pull_tsgl(sk, len, areq->tsgl); /* Initialize the crypto operation */ skcipher_request_set_tfm(&areq->cra_u.skcipher_req, tfm); @@ -305,7 +305,7 @@ static void skcipher_sock_destruct(struct sock *sk) struct alg_sock *pask = alg_sk(psk); struct crypto_skcipher *tfm = pask->private; - af_alg_pull_tsgl(sk, ctx->used, NULL, 0); + af_alg_pull_tsgl(sk, ctx->used, NULL); sock_kzfree_s(sk, ctx->iv, crypto_skcipher_ivsize(tfm)); sock_kfree_s(sk, ctx, ctx->len); af_alg_release_parent(sk); diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h index 2e43d7704d1d..33da71c1d2a1 100644 --- a/include/crypto/if_alg.h +++ b/include/crypto/if_alg.h @@ -237,9 +237,8 @@ static inline bool af_alg_readable(struct sock *sk) return PAGE_SIZE <= af_alg_rcvbuf(sk); } -unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes, size_t offset); -void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst, - size_t dst_offset); +unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes); +void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst); void af_alg_wmem_wakeup(struct sock *sk); int af_alg_wait_for_data(struct sock *sk, unsigned flags, unsigned min); int af_alg_sendmsg(struct socket *sock, struct msghdr *msg, size_t size, -- 2.25.1

2 1

[PATCH OLK-6.6 0/2] CVE-2026-31503
by Li Xiasong 30 Apr '26

30 Apr '26

Kuniyuki Iwashima (1): tcp: Rearrange tests in inet_csk_bind_conflict(). Martin KaFai Lau (1): udp: Fix wildcard bind conflict check when using hash2 include/net/inet_hashtables.h | 14 ++++++++ net/ipv4/inet_connection_sock.c | 58 ++++++++++++--------------------- net/ipv4/udp.c | 2 +- 3 files changed, 36 insertions(+), 38 deletions(-) -- 2.34.1

2 5