June 2024 - Kernel - mailweb.openeuler.org

[PATCH openEuler-22.03-LTS-SP1] mmc: mmc_spi: fix error handling in mmc_spi_probe()
by Li Nan 11 Jun '24

11 Jun '24

From: Yang Yingliang <yangyingliang(a)huawei.com> stable inclusion from stable-v5.10.169 commit 0b3edcb24bd81b3b2e3dac89f4733bfd47d283be category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4N9 CVE: CVE-2023-52708 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… ---------------------------------------------------- commit cf4c9d2ac1e42c7d18b921bec39486896645b714 upstream. If mmc_add_host() fails, it doesn't need to call mmc_remove_host(), or it will cause null-ptr-deref, because of deleting a not added device in mmc_remove_host(). To fix this, goto label 'fail_glue_init', if mmc_add_host() fails, and change the label 'fail_add_host' to 'fail_gpiod_request'. Fixes: 15a0580ced08 ("mmc_spi host driver") Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> Cc:stable@vger.kernel.org Link: https://lore.kernel.org/r/20230131013835.3564011-1-yangyingliang@huawei.com Signed-off-by: Ulf Hansson <ulf.hansson(a)linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Li Nan <linan122(a)huawei.com> --- drivers/mmc/host/mmc_spi.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c index 02f4fd26e76a..1d814919eb6b 100644 --- a/drivers/mmc/host/mmc_spi.c +++ b/drivers/mmc/host/mmc_spi.c @@ -1450,7 +1450,7 @@ static int mmc_spi_probe(struct spi_device *spi) status = mmc_add_host(mmc); if (status != 0) - goto fail_add_host; + goto fail_glue_init; /* * Index 0 is card detect @@ -1458,7 +1458,7 @@ static int mmc_spi_probe(struct spi_device *spi) */ status = mmc_gpiod_request_cd(mmc, NULL, 0, false, 1000); if (status == -EPROBE_DEFER) - goto fail_add_host; + goto fail_gpiod_request; if (!status) { /* * The platform has a CD GPIO signal that may support @@ -1473,7 +1473,7 @@ static int mmc_spi_probe(struct spi_device *spi) /* Index 1 is write protect/read only */ status = mmc_gpiod_request_ro(mmc, NULL, 1, 0); if (status == -EPROBE_DEFER) - goto fail_add_host; + goto fail_gpiod_request; if (!status) has_ro = true; @@ -1487,7 +1487,7 @@ static int mmc_spi_probe(struct spi_device *spi) ? ", cd polling" : ""); return 0; -fail_add_host: +fail_gpiod_request: mmc_remove_host(mmc); fail_glue_init: mmc_spi_dma_free(host); -- 2.39.2

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[PATCH OLK-5.10 0/2] Fix CVE-2024-36949
by Zheng Zucheng 11 Jun '24

11 Jun '24

Fix CVE-2024-36949 Mukul Joshi (1): drm/amdkfd: Rework kfd_locked handling Zhigang Luo (1): amd/amdkfd: sync all devices to wait all processes being evicted drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 7 ------- drivers/gpu/drm/amd/amdkfd/kfd_device.c | 23 ++++++++++++++--------- drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 2 ++ drivers/gpu/drm/amd/amdkfd/kfd_process.c | 8 +++++++- 4 files changed, 23 insertions(+), 17 deletions(-) -- 2.34.1

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[PATCH openEuler-22.03-LTS-SP1] netfilter: nft_set_pipapo: do not free live element
by Wei Li 11 Jun '24

11 Jun '24

From: Florian Westphal <fw(a)strlen.de> mainline inclusion from mainline-v6.9-rc5 commit 3cfc9ec039af60dbd8965ae085b2c2ccdcfbe1cc category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9JFG2 CVE: CVE-2024-26924 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?i… -------------------------------- Pablo reports a crash with large batches of elements with a back-to-back add/remove pattern. Quoting Pablo: add_elem("00000000") timeout 100 ms ... add_elem("0000000X") timeout 100 ms del_elem("0000000X") <---------------- delete one that was just added ... add_elem("00005000") timeout 100 ms 1) nft_pipapo_remove() removes element 0000000X Then, KASAN shows a splat. Looking at the remove function there is a chance that we will drop a rule that maps to a non-deactivated element. Removal happens in two steps, first we do a lookup for key k and return the to-be-removed element and mark it as inactive in the next generation. Then, in a second step, the element gets removed from the set/map. The _remove function does not work correctly if we have more than one element that share the same key. This can happen if we insert an element into a set when the set already holds an element with same key, but the element mapping to the existing key has timed out or is not active in the next generation. In such case its possible that removal will unmap the wrong element. If this happens, we will leak the non-deactivated element, it becomes unreachable. The element that got deactivated (and will be freed later) will remain reachable in the set data structure, this can result in a crash when such an element is retrieved during lookup (stale pointer). Add a check that the fully matching key does in fact map to the element that we have marked as inactive in the deactivation step. If not, we need to continue searching. Add a bug/warn trap at the end of the function as well, the remove function must not ever be called with an invisible/unreachable/non-existent element. v2: avoid uneeded temporary variable (Stefano) Fixes: 3c4287f62044 ("nf_tables: Add set type for arbitrary concatenation of ranges") Reported-by: Pablo Neira Ayuso <pablo(a)netfilter.org> Reviewed-by: Stefano Brivio <sbrivio(a)redhat.com> Signed-off-by: Florian Westphal <fw(a)strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo(a)netfilter.org> Conflicts: net/netfilter/nft_set_pipapo.c [lw: fix context conflict due to lack of commit f8bf7706151a ("netfilter: nf_tables: integrate pipapo into commit protocol")] Signed-off-by: Wei Li <liwei391(a)huawei.com> --- net/netfilter/nft_set_pipapo.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/net/netfilter/nft_set_pipapo.c b/net/netfilter/nft_set_pipapo.c index 9ca18f4c4eaf..ef6fb41fd31f 100644 --- a/net/netfilter/nft_set_pipapo.c +++ b/net/netfilter/nft_set_pipapo.c @@ -1932,6 +1932,8 @@ static void nft_pipapo_remove(const struct net *net, const struct nft_set *set, rules_fx = rules_f0; nft_pipapo_for_each_field(f, i, m) { + bool last = i == m->field_count - 1; + if (!pipapo_match_field(f, start, rules_fx, match_start, match_end)) break; @@ -1944,17 +1946,19 @@ static void nft_pipapo_remove(const struct net *net, const struct nft_set *set, match_start += NFT_PIPAPO_GROUPS_PADDED_SIZE(f); match_end += NFT_PIPAPO_GROUPS_PADDED_SIZE(f); - } - if (i == m->field_count) { - priv->dirty = true; - pipapo_drop(m, rulemap); - pipapo_commit(set); - return; + if (last && f->mt[rulemap[i].to].e == e) { + priv->dirty = true; + pipapo_drop(m, rulemap); + pipapo_commit(set); + return; + } } first_rule += rules_f0; } + + WARN_ON_ONCE(1); /* elem_priv not found * } /** -- 2.25.1

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[PATCH openEuler-22.03-LTS-SP1 0/2] Fix CVE-2024-36949
by Zheng Zucheng 11 Jun '24

11 Jun '24

Fix CVE-2024-36949 Mukul Joshi (1): drm/amdkfd: Rework kfd_locked handling Zhigang Luo (1): amd/amdkfd: sync all devices to wait all processes being evicted drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 7 ------- drivers/gpu/drm/amd/amdkfd/kfd_device.c | 23 ++++++++++++++--------- drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 2 ++ drivers/gpu/drm/amd/amdkfd/kfd_process.c | 8 +++++++- 4 files changed, 23 insertions(+), 17 deletions(-) -- 2.34.1

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[openEuler-22.03-LTS-SP1] powerpc/powernv: Add a null pointer check in opal_powercap_init()
by Zhang Zekun 11 Jun '24

11 Jun '24

From: Kunwu Chan <chentao(a)kylinos.cn> stable inclusion from stable-v5.10.209 commit a67a04ad05acb56640798625e73fa54d6d41cce1 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q9HG CVE: CVE-2023-52696 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit e123015c0ba859cf48aa7f89c5016cc6e98e018d ] kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Fixes: b9ef7b4b867f ("powerpc: Convert to using %pOFn instead of device_node.name") Signed-off-by: Kunwu Chan <chentao(a)kylinos.cn> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://msgid.link/20231126095739.1501990-1-chentao@kylinos.cn Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: sanglipeng1 <sanglipeng1(a)jd.com> Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- arch/powerpc/platforms/powernv/opal-powercap.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/powerpc/platforms/powernv/opal-powercap.c b/arch/powerpc/platforms/powernv/opal-powercap.c index c16d44f6f1d1..ce9ec3962cef 100644 --- a/arch/powerpc/platforms/powernv/opal-powercap.c +++ b/arch/powerpc/platforms/powernv/opal-powercap.c @@ -196,6 +196,12 @@ void __init opal_powercap_init(void) j = 0; pcaps[i].pg.name = kasprintf(GFP_KERNEL, "%pOFn", node); + if (!pcaps[i].pg.name) { + kfree(pcaps[i].pattrs); + kfree(pcaps[i].pg.attrs); + goto out_pcaps_pattrs; + } + if (has_min) { powercap_add_attr(min, "powercap-min", &pcaps[i].pattrs[j]); -- 2.17.1

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[PATCH OLK-5.10] cvm: enhance security for cvm host feature
by Ju Fu 11 Jun '24

11 Jun '24

virtcca inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I9TM0T -------------------------------- enhance security for cvm host feature Signed-off-by: Ju Fu <fuju1(a)huawei.com> --- arch/arm64/include/asm/kvm_emulate.h | 4 ++- arch/arm64/include/asm/kvm_tmi.h | 34 ++------------------ arch/arm64/include/asm/kvm_tmm.h | 2 +- arch/arm64/kvm/cvm.c | 48 ++++++++++++++++++++++++---- drivers/irqchip/irq-gic-v3-its.c | 2 +- 5 files changed, 49 insertions(+), 41 deletions(-) diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index 540563623..1271df56c 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -571,7 +571,9 @@ static inline enum cvm_state kvm_cvm_state(struct kvm *kvm) { struct cvm *cvm = kvm->arch.cvm; - return cvm && READ_ONCE(cvm->state); + if (!cvm) + return 0; + return READ_ONCE(cvm->state); } #endif #endif /* __ARM64_KVM_EMULATE_H__ */ diff --git a/arch/arm64/include/asm/kvm_tmi.h b/arch/arm64/include/asm/kvm_tmi.h index 536594017..b89680f31 100644 --- a/arch/arm64/include/asm/kvm_tmi.h +++ b/arch/arm64/include/asm/kvm_tmi.h @@ -18,22 +18,6 @@ #define TMM_TTT_LEVEL_2 2 #define TMM_TTT_LEVEL_3 3 -#ifdef CONFIG_CVM_HOST_FVP_PLAT -#define CVM_MEM_BASE ULL(0x8800000000) /* choose FVP platform to run cVM */ -#define VQ_NUM 3 -#else -#define CVM_MEM_BASE ULL(0x800000000) /* choose qemu platform to run cVM */ -#define VQ_NUM 3 -#endif - -#define MEM_SEG_NUMS 2 - -/* define in QEMU hw/arm/virt.c */ -#define VIRT_PCIE_MMIO 0x10000000 /* 256MB */ -#define VIRT_PCIE_MMIO_SIZE 0x1000000 /* 16MB */ -#define VIRT_HIGH_PCIE_ECAM 0x8000000000 /* 512GB */ -#define VIRT_HIGH_PCIE_ECAM_SIZE 0x12000000 /* 288MB */ - /* TMI error codes. */ #define TMI_SUCCESS 0 #define TMI_ERROR_INPUT 1 @@ -214,6 +198,8 @@ struct tmi_tec_run { #define TMI_NO_MEASURE_CONTENT U(0) #define TMI_MEASURE_CONTENT U(1) +#define CVM_IPA_MAX_VAL (1UL << 48) + /* * SMC_TMM_INIT_COMPLETE is the only function in the TMI that originates from * the CVM world and is handled by the SPMD. The remaining functions are @@ -264,7 +250,7 @@ struct tmi_tec_run { #define TMI_ABI_VERSION_GET_MAJOR(_version) ((_version) >> 16) #define TMI_ABI_VERSION_GET_MINOR(_version) ((_version) & 0xFFFF) -#define TMI_ABI_VERSION_MAJOR U(0x0) +#define TMI_ABI_VERSION_MAJOR U(0x1) /* KVM_CAP_ARM_TMM on VM fd */ #define KVM_CAP_ARM_TMM_CONFIG_CVM_HOST 0 @@ -330,20 +316,6 @@ struct kvm_cap_arm_tmm_populate_region_args { __u32 reserved[3]; }; -enum tmi_tmm_mem_type { - TMM_MEM_TYPE_RD, - TMM_MEM_TYPE_TEC, - TMM_MEM_TYPE_TTT, - TMM_MEM_TYPE_CVM_PA, -}; - -enum tmi_tmm_map_size { - TMM_MEM_MAP_SIZE_4K, - TMM_MEM_MAP_SIZE_2M, - TMM_MEM_MAP_SIZE_1G, - TMM_MEM_MAP_SIZE_MAX, -}; - static inline bool tmm_is_addr_ttt_level_aligned(uint64_t addr, int level) { uint64_t mask = (1 << (12 + 9 * (3 - level))) - 1; diff --git a/arch/arm64/include/asm/kvm_tmm.h b/arch/arm64/include/asm/kvm_tmm.h index 88fa0873c..8cc7a35c9 100644 --- a/arch/arm64/include/asm/kvm_tmm.h +++ b/arch/arm64/include/asm/kvm_tmm.h @@ -8,7 +8,7 @@ #include <uapi/linux/kvm.h> enum cvm_state { - CVM_STATE_NONE, + CVM_STATE_NONE = 1, CVM_STATE_NEW, CVM_STATE_ACTIVE, CVM_STATE_DYING diff --git a/arch/arm64/kvm/cvm.c b/arch/arm64/kvm/cvm.c index 70521fec8..73b8daede 100644 --- a/arch/arm64/kvm/cvm.c +++ b/arch/arm64/kvm/cvm.c @@ -181,8 +181,9 @@ int kvm_arm_create_cvm(struct kvm *kvm) memcpy(cvm->params->rpv, &cvm->cvm_vmid, sizeof(cvm->cvm_vmid)); cvm->rd = tmi_cvm_create(__pa(cvm->params), numa_set); if (!cvm->rd) { - kvm_err("KVM creates cVM: %d\n", cvm->cvm_vmid); + kvm_err("KVM creates cVM failed: %d\n", cvm->cvm_vmid); ret = -ENOMEM; + goto out; } WRITE_ONCE(cvm->state, CVM_STATE_NEW); @@ -341,7 +342,7 @@ int kvm_cvm_populate_par_region(struct kvm *kvm, u64 numa_set, */ ipa = ALIGN_DOWN(ipa, map_size); - if (is_data_create_region(ipa_base, args)) { + if (is_data_create_region(ipa, args)) { pfn = gfn_to_pfn_memslot(memslot, gpa_to_gfn(ipa)); if (is_error_pfn(pfn)) { ret = -EFAULT; @@ -602,6 +603,7 @@ static int kvm_populate_ram_region(struct kvm *kvm, u64 map_size, static int kvm_populate_ipa_cvm_range(struct kvm *kvm, struct kvm_cap_arm_tmm_populate_region_args *args) { + struct cvm *cvm = (struct cvm *)kvm->arch.cvm; u64 l2_granule = cvm_granule_size(TMM_TTT_LEVEL_2); phys_addr_t ipa_base1, ipa_end2; @@ -612,7 +614,10 @@ static int kvm_populate_ipa_cvm_range(struct kvm *kvm, !IS_ALIGNED(args->populate_ipa_base2, PAGE_SIZE) || !IS_ALIGNED(args->populate_ipa_size2, PAGE_SIZE)) return -EINVAL; - if (args->populate_ipa_base2 < args->populate_ipa_base1 + args->populate_ipa_size1) + + if (args->populate_ipa_base1 < cvm->loader_start || + args->populate_ipa_base2 < args->populate_ipa_base1 + args->populate_ipa_size1 || + cvm->dtb_end < args->populate_ipa_base2 + args->populate_ipa_size2) return -EINVAL; if (args->flags & ~TMI_MEASURE_CONTENT) @@ -755,6 +760,26 @@ int kvm_init_tmm(void) return 0; } +static bool is_numa_ipa_range_valid(struct kvm_numa_info *numa_info) +{ + unsigned long i; + struct kvm_numa_node *numa_node, *prev_numa_node; + + prev_numa_node = NULL; + for (i = 0; i < numa_info->numa_cnt; i++) { + numa_node = &numa_info->numa_nodes[i]; + if (numa_node->ipa_start + numa_node->ipa_size < numa_node->ipa_start) + return false; + if (prev_numa_node && + numa_node->ipa_start < prev_numa_node->ipa_start + prev_numa_node->ipa_size) + return false; + prev_numa_node = numa_node; + } + if (numa_node->ipa_start + numa_node->ipa_size > CVM_IPA_MAX_VAL) + return false; + return true; +} + int kvm_load_user_data(struct kvm *kvm, unsigned long arg) { struct kvm_user_data user_data; @@ -766,26 +791,34 @@ int kvm_load_user_data(struct kvm *kvm, unsigned long arg) return -EFAULT; if (copy_from_user(&user_data, argp, sizeof(user_data))) - return -EFAULT; + return -EINVAL; numa_info = &user_data.numa_info; if (numa_info->numa_cnt > MAX_NUMA_NODE) - return -EFAULT; + return -EINVAL; if (numa_info->numa_cnt > 0) { unsigned long i, total_size = 0; struct kvm_numa_node *numa_node = &numa_info->numa_nodes[0]; unsigned long ipa_end = numa_node->ipa_start + numa_node->ipa_size; + if (!is_numa_ipa_range_valid(numa_info)) + return -EINVAL; if (user_data.loader_start < numa_node->ipa_start || user_data.dtb_end > ipa_end) - return -EFAULT; + return -EINVAL; for (i = 0; i < numa_info->numa_cnt; i++) total_size += numa_info->numa_nodes[i].ipa_size; if (total_size != user_data.ram_size) - return -EFAULT; + return -EINVAL; } + if (user_data.image_end <= user_data.loader_start || + user_data.initrd_start < user_data.image_end || + user_data.dtb_end < user_data.initrd_start || + user_data.ram_size < user_data.dtb_end - user_data.loader_start) + return -EINVAL; + cvm->loader_start = user_data.loader_start; cvm->image_end = user_data.image_end; cvm->initrd_start = user_data.initrd_start; @@ -871,6 +904,7 @@ int kvm_init_cvm_vm(struct kvm *kvm) return -ENOMEM; cvm->params = params; + WRITE_ONCE(cvm->state, CVM_STATE_NONE); return 0; } diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 2c2f23f35..153930d01 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -2905,7 +2905,7 @@ static void its_free_tables(struct its_node *its) for (i = 0; i < GITS_BASER_NR_REGS; i++) { if (its->tables[i].base) { #ifdef CONFIG_CVM_GUEST - if (!is_cvm_world()) + if (is_cvm_world()) its_free_shared_pages(its->tables[i].base, its->tables[i].order); else -- 2.25.1.windows.1

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[PATCH openEuler-22.03-LTS-SP1 0/4] Fix CVE-2024-35915
by Zheng Zucheng 11 Jun '24

11 Jun '24

Fix CVE-2024-35915 Ryosuke Yasuoka (3): nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet nfc: nci: Fix uninit-value in nci_rx_work nfc: nci: Fix handling of zero-length payload packets in nci_rx_work() Tetsuo Handa (1): nfc: nci: Fix kcov check in nci_rx_work() net/nfc/nci/core.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) -- 2.34.1

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[PATCH openEuler-22.03-LTS-SP1 0/4] Fix CVE-2024-35915
by Zheng Zucheng 11 Jun '24

11 Jun '24

Fix CVE-2024-35915 Ryosuke Yasuoka (3): nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet nfc: nci: Fix uninit-value in nci_rx_work nfc: nci: Fix handling of zero-length payload packets in nci_rx_work() Tetsuo Handa (1): nfc: nci: Fix kcov check in nci_rx_work() net/nfc/nci/core.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) -- 2.34.1

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[PATCH openEuler-1.0-LTS 0/4] Fix CVE-2024-35915
by Zheng Zucheng 11 Jun '24

11 Jun '24

Fix CVE-2024-35915 Ryosuke Yasuoka (3): nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet nfc: nci: Fix uninit-value in nci_rx_work nfc: nci: Fix handling of zero-length payload packets in nci_rx_work() Tetsuo Handa (1): nfc: nci: Fix kcov check in nci_rx_work() net/nfc/nci/core.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) -- 2.34.1

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[PATCH openEuler-1.0-LTS] nfp: Fix memory leak in nfp_cpp_area_cache_add()
by Li Huafei 11 Jun '24

11 Jun '24

From: Jianglei Nie <niejianglei2021(a)163.com> stable inclusion from stable-v4.19.221 commit eb51f639ef3fd5498b7def290ed8681b6aadd9a7 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9S258 CVE: CVE-2021-47516 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit c56c96303e9289cc34716b1179597b6f470833de upstream. In line 800 (#1), nfp_cpp_area_alloc() allocates and initializes a CPP area structure. But in line 807 (#2), when the cache is allocated failed, this CPP area structure is not freed, which will result in memory leak. We can fix it by freeing the CPP area when the cache is allocated failed (#2). 792 int nfp_cpp_area_cache_add(struct nfp_cpp *cpp, size_t size) 793 { 794 struct nfp_cpp_area_cache *cache; 795 struct nfp_cpp_area *area; 800 area = nfp_cpp_area_alloc(cpp, NFP_CPP_ID(7, NFP_CPP_ACTION_RW, 0), 801 0, size); // #1: allocates and initializes 802 if (!area) 803 return -ENOMEM; 805 cache = kzalloc(sizeof(*cache), GFP_KERNEL); 806 if (!cache) 807 return -ENOMEM; // #2: missing free 817 return 0; 818 } Fixes: 4cb584e0ee7d ("nfp: add CPP access core") Signed-off-by: Jianglei Nie <niejianglei2021(a)163.com> Acked-by: Simon Horman <simon.horman(a)corigine.com> Link: https://lore.kernel.org/r/20211209061511.122535-1-niejianglei2021@163.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Li Huafei <lihuafei1(a)huawei.com> --- drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c index 6f5d69293a252..f7b354e796cb6 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c @@ -803,8 +803,10 @@ int nfp_cpp_area_cache_add(struct nfp_cpp *cpp, size_t size) return -ENOMEM; cache = kzalloc(sizeof(*cache), GFP_KERNEL); - if (!cache) + if (!cache) { + nfp_cpp_area_free(area); return -ENOMEM; + } cache->id = 0; cache->addr = 0; -- 2.25.1

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