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[PATCH OLK-6.6] perf/x86: Fix open counting event error
by Luo Gengkun 23 Apr '25

23 Apr '25

hulk inclusion category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IC0AJF CVE: NA -------------------------------- Perf doesn't work at perf stat for hardware events: $perf stat -- sleep 1 Performance counter stats for 'sleep 1': 16.44 msec task-clock # 0.016 CPUs utilized 2 context-switches # 121.691 /sec 0 cpu-migrations # 0.000 /sec 54 page-faults # 3.286 K/sec <not supported> cycles <not supported> instructions <not supported> branches <not supported> branch-misses The reason is that the check in x86_pmu_hw_config for sampling event is unexpectedly applied to the counting event. Fixes: 88ec7eedbbd2 ("perf/x86: Fix low freqency setting issue") Signed-off-by: Luo Gengkun <luogengkun2(a)huawei.com> --- arch/x86/events/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c index c1a93fcd0b7a..0b24fc9d2735 100644 --- a/arch/x86/events/core.c +++ b/arch/x86/events/core.c @@ -623,7 +623,7 @@ int x86_pmu_hw_config(struct perf_event *event) if (event->attr.type == event->pmu->type) event->hw.config |= event->attr.config & X86_RAW_EVENT_MASK; - if (!event->attr.freq && x86_pmu.limit_period) { + if (is_sampling_event(event) && !event->attr.freq && x86_pmu.limit_period) { s64 left = event->attr.sample_period; x86_pmu.limit_period(event, &left); if (left > event->attr.sample_period) -- 2.34.1

2 1

[PATCH OLK-6.6] RDMA/bnxt_re: Fix the page details for the srq created by kernel consumers
by Zhang Changzhong 22 Apr '25

22 Apr '25

From: Kashyap Desai <kashyap.desai(a)broadcom.com> mainline inclusion from mainline-v6.14-rc5 commit b66535356a4834a234f99e16a97eb51f2c6c5a7d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBWVSU CVE: CVE-2025-21885 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- While using nvme target with use_srq on, below kernel panic is noticed. [ 549.698111] bnxt_en 0000:41:00.0 enp65s0np0: FEC autoneg off encoding: Clause 91 RS(544,514) [ 566.393619] Oops: divide error: 0000 [#1] PREEMPT SMP NOPTI .. [ 566.393799] <TASK> [ 566.393807] ? __die_body+0x1a/0x60 [ 566.393823] ? die+0x38/0x60 [ 566.393835] ? do_trap+0xe4/0x110 [ 566.393847] ? bnxt_qplib_alloc_init_hwq+0x1d4/0x580 [bnxt_re] [ 566.393867] ? bnxt_qplib_alloc_init_hwq+0x1d4/0x580 [bnxt_re] [ 566.393881] ? do_error_trap+0x7c/0x120 [ 566.393890] ? bnxt_qplib_alloc_init_hwq+0x1d4/0x580 [bnxt_re] [ 566.393911] ? exc_divide_error+0x34/0x50 [ 566.393923] ? bnxt_qplib_alloc_init_hwq+0x1d4/0x580 [bnxt_re] [ 566.393939] ? asm_exc_divide_error+0x16/0x20 [ 566.393966] ? bnxt_qplib_alloc_init_hwq+0x1d4/0x580 [bnxt_re] [ 566.393997] bnxt_qplib_create_srq+0xc9/0x340 [bnxt_re] [ 566.394040] bnxt_re_create_srq+0x335/0x3b0 [bnxt_re] [ 566.394057] ? srso_return_thunk+0x5/0x5f [ 566.394068] ? __init_swait_queue_head+0x4a/0x60 [ 566.394090] ib_create_srq_user+0xa7/0x150 [ib_core] [ 566.394147] nvmet_rdma_queue_connect+0x7d0/0xbe0 [nvmet_rdma] [ 566.394174] ? lock_release+0x22c/0x3f0 [ 566.394187] ? srso_return_thunk+0x5/0x5f Page size and shift info is set only for the user space SRQs. Set page size and page shift for kernel space SRQs also. Fixes: 0c4dcd602817 ("RDMA/bnxt_re: Refactor hardware queue memory allocation") Signed-off-by: Kashyap Desai <kashyap.desai(a)broadcom.com> Signed-off-by: Selvin Xavier <selvin.xavier(a)broadcom.com> Link: https://patch.msgid.link/1740237621-29291-1-git-send-email-selvin.xavier@br… Signed-off-by: Leon Romanovsky <leon(a)kernel.org> Conflicts: drivers/infiniband/hw/bnxt_re/ib_verbs.c [commit 30b871338c3e ("RDMA/bnxt_re: Refactor NQ allocation") not merged] Signed-off-by: Zhang Changzhong <zhangchangzhong(a)huawei.com> --- drivers/infiniband/hw/bnxt_re/ib_verbs.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c index f7345e4..98ddc06 100644 --- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c +++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c @@ -1775,6 +1775,8 @@ int bnxt_re_create_srq(struct ib_srq *ib_srq, srq->qplib_srq.threshold = srq_init_attr->attr.srq_limit; srq->srq_limit = srq_init_attr->attr.srq_limit; srq->qplib_srq.eventq_hw_ring_id = rdev->nq[0].ring_id; + srq->qplib_srq.sg_info.pgsize = PAGE_SIZE; + srq->qplib_srq.sg_info.pgshft = PAGE_SHIFT; nq = &rdev->nq[0]; if (udata) { -- 2.9.5

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[PATCH OLK-6.6] Revert "perf/x86: Fix low freqency setting issue"
by Luo Gengkun 22 Apr '25

22 Apr '25

hulk inclusion category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IC0AJF CVE: NA -------------------------------- This reverts commit 4fa4f2aef6549f05e766b8bf46978ed659875b5f. This patch makes perf stat failed, so revert it. Signed-off-by: Luo Gengkun <luogengkun2(a)huawei.com> --- arch/x86/events/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c index c1a93fcd0b7a..ad0932f84094 100644 --- a/arch/x86/events/core.c +++ b/arch/x86/events/core.c @@ -623,7 +623,7 @@ int x86_pmu_hw_config(struct perf_event *event) if (event->attr.type == event->pmu->type) event->hw.config |= event->attr.config & X86_RAW_EVENT_MASK; - if (!event->attr.freq && x86_pmu.limit_period) { + if (event->attr.sample_period && x86_pmu.limit_period) { s64 left = event->attr.sample_period; x86_pmu.limit_period(event, &left); if (left > event->attr.sample_period) -- 2.34.1

2 1

[PATCH v4 OLK-6.6 00/18] fs/resctrl: Introduce the resctrl_feat_type
by Zeng Heng 22 Apr '25

22 Apr '25

Compare to v3: Patch 09: Add comments for the enum resctrl_feat_type and make modifications based on community feedback. Compare to v2: Patch 09: Merge the changes related to the impact on the common layer in Patch 10. Patch 18: New patch added. Compare to v1: Patch 5: Update the condition for MPAM to determine whether to perform MBM overflow checking. Patch 15: Split the original patch and merge part of the fix content into Patch 9. Zeng Heng (18): arm64/mpam: fix memleak in resctrl_arch_mon_ctx_alloc_no_wait() arm64/mpam: fix impossible condition in get_cpumask_from_cache_id() arm64/mpam: fix impossible condition in resctrl_arch_rmid_read() arm64/mpam: Optimize CSU/MBWU monitor multiplexing fs/resctrl: Determine whether the MBM monitors require overflow checking arm64/mpam: Set the cpbm width of msc class with the minimum arm64/mpam: Correct the judgment condition of the CMAX feature fs/resctrl: Fix kmemleak caused by closid_init() fs/resctrl: Introduce the resctrl_feat_type arm64/mpam: Add mbw_min and cmin features arm64/mpam: Add PRIO feature arm64/mpam: Add CMAX feature arm64/mpam: Add PBM feature arm64/mpam: Add limit feature arm64/mpam: Fix allocated cache size information fs/resctrl: Fix configuration to wrong control group when CDP is enabled arm64/mpam: Add debugging information about CDP monitor value fs/resctrl: Support arch specific struct resctrl_arch_staged_config arch/x86/include/asm/resctrl.h | 33 ++ arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 16 +- drivers/platform/mpam/mpam_devices.c | 111 +++++-- drivers/platform/mpam/mpam_internal.h | 23 +- drivers/platform/mpam/mpam_resctrl.c | 355 +++++++++++++++++----- fs/resctrl/ctrlmondata.c | 138 ++++++++- fs/resctrl/monitor.c | 5 +- fs/resctrl/rdtgroup.c | 146 ++++++--- include/linux/arm_mpam.h | 11 + include/linux/resctrl.h | 36 ++- include/linux/resctrl_types.h | 30 ++ 11 files changed, 716 insertions(+), 188 deletions(-) -- 2.25.1

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[PATCH v4 OLK-6.6 00/18] fs/resctrl: Introduce the resctrl_feat_type
by Zeng Heng 22 Apr '25

22 Apr '25

Compare to v3: Patch 09: Add comments for the enum resctrl_feat_type and make modifications based on community feedback. Compare to v2: Patch 09: Merge the changes related to the impact on the common layer in Patch 10. Patch 18: New patch added. Compare to v1: Patch 5: Update the condition for MPAM to determine whether to perform MBM overflow checking. Patch 15: Split the original patch and merge part of the fix content into Patch 9. Zeng Heng (18): arm64/mpam: fix memleak in resctrl_arch_mon_ctx_alloc_no_wait() arm64/mpam: fix impossible condition in get_cpumask_from_cache_id() arm64/mpam: fix impossible condition in resctrl_arch_rmid_read() arm64/mpam: Optimize CSU/MBWU monitor multiplexing fs/resctrl: Determine whether the MBM monitors require overflow checking arm64/mpam: Set the cpbm width of msc class with the minimum arm64/mpam: Correct the judgment condition of the CMAX feature fs/resctrl: Fix kmemleak caused by closid_init() fs/resctrl: Introduce the resctrl_feat_type arm64/mpam: Add mbw_min and cmin features arm64/mpam: Add PRIO feature arm64/mpam: Add CMAX feature arm64/mpam: Add PBM feature arm64/mpam: Add limit feature arm64/mpam: Fix allocated cache size information fs/resctrl: Fix configuration to wrong control group when CDP is enabled arm64/mpam: Add debugging information about CDP monitor value fs/resctrl: Support arch specific struct resctrl_arch_staged_config arch/x86/include/asm/resctrl.h | 33 ++ arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 16 +- drivers/platform/mpam/mpam_devices.c | 111 +++++-- drivers/platform/mpam/mpam_internal.h | 23 +- drivers/platform/mpam/mpam_resctrl.c | 355 +++++++++++++++++----- fs/resctrl/ctrlmondata.c | 138 ++++++++- fs/resctrl/monitor.c | 5 +- fs/resctrl/rdtgroup.c | 146 ++++++--- include/linux/arm_mpam.h | 11 + include/linux/resctrl.h | 36 ++- include/linux/resctrl_types.h | 30 ++ 11 files changed, 716 insertions(+), 188 deletions(-) -- 2.25.1

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[PATCH OLK-6.6] erofs/cachefiles: Change the unmark inuse sequence in erofs ondemand mode
by Zizhi Wo 22 Apr '25

22 Apr '25

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IC349R -------------------------------- In the current erofs ondemand loading mode, the close request is sent to userspace before calling the unmark inuse interface. This means userspace cannot reliably perform culling immediately upon receiving the close req. To address this, a new cookie flag is introduced to allow calling cachefiles_unmark_inode_in_use() before sending the close request. This enables userspace to safely perform culling after the notification. Signed-off-by: Zizhi Wo <wozizhi(a)huawei.com> --- fs/cachefiles/interface.c | 15 ++++++++++----- fs/erofs/fscache.c | 2 ++ include/linux/fscache-cache.h | 24 ++++++++++++++++++++++++ 3 files changed, 36 insertions(+), 5 deletions(-) diff --git a/fs/cachefiles/interface.c b/fs/cachefiles/interface.c index 4d44e74c22fd..c384b6939a3e 100644 --- a/fs/cachefiles/interface.c +++ b/fs/cachefiles/interface.c @@ -338,6 +338,9 @@ static void cachefiles_clean_up_object(struct cachefiles_object *object, struct cachefiles_cache *cache) { struct file *file; + const struct cred *saved_cred; + + cachefiles_begin_secure(cache, &saved_cred); if (test_bit(FSCACHE_COOKIE_RETIRED, &object->cookie->flags)) { if (!test_bit(CACHEFILES_OBJECT_USING_TMPFILE, &object->flags)) { @@ -362,6 +365,8 @@ static void cachefiles_clean_up_object(struct cachefiles_object *object, if (file) fput(file); + + cachefiles_end_secure(cache, saved_cred); } /* @@ -371,7 +376,7 @@ static void cachefiles_withdraw_cookie(struct fscache_cookie *cookie) { struct cachefiles_object *object = cookie->cache_priv; struct cachefiles_cache *cache = object->volume->cache; - const struct cred *saved_cred; + bool unmark_early = fscache_test_inode_unmark_early(cache->cache); _enter("o=%x", object->debug_id); cachefiles_see_object(object, cachefiles_obj_see_withdraw_cookie); @@ -383,13 +388,13 @@ static void cachefiles_withdraw_cookie(struct fscache_cookie *cookie) spin_unlock(&cache->object_list_lock); } + if (unmark_early && object->file) + cachefiles_clean_up_object(object, cache); + cachefiles_ondemand_clean_object(object); - if (object->file) { - cachefiles_begin_secure(cache, &saved_cred); + if (!unmark_early && object->file) cachefiles_clean_up_object(object, cache); - cachefiles_end_secure(cache, saved_cred); - } cookie->cache_priv = NULL; cachefiles_put_object(object, cachefiles_obj_put_detach); diff --git a/fs/erofs/fscache.c b/fs/erofs/fscache.c index 7bcd1d261e7d..37289680888a 100644 --- a/fs/erofs/fscache.c +++ b/fs/erofs/fscache.c @@ -370,6 +370,8 @@ static int erofs_fscache_register_volume(struct super_block *sb) } else { /* enable synchronous unhashing for the associated volumes */ fscache_set_sync_volume_unhash(volume->cache); + /* enable to set inode unmark inuse early before send close req */ + fscache_set_inode_unmark_early(volume->cache); } sbi->volume = volume; diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h index 642fc1276c63..a1c5fa1a5214 100644 --- a/include/linux/fscache-cache.h +++ b/include/linux/fscache-cache.h @@ -46,6 +46,7 @@ struct fscache_cache { char *name; KABI_USE(1, unsigned long flags) #define FSCACHE_CACHE_SYNC_VOLUME_UNHASH 0 /* Mark to enable volume sync unhash */ +#define FSCACHE_CACHE_EARLY_UNMARK_INUSE 1 /* Need to unmark earlier */ KABI_RESERVE(2) KABI_RESERVE(3) @@ -225,6 +226,29 @@ static inline bool fscache_test_sync_volume_unhash(struct fscache_cache *cache) return test_bit(FSCACHE_CACHE_SYNC_VOLUME_UNHASH, &cache->flags); } +/** + * fscache_set_inode_unmark_early - Early unmark the inode inuse + * @cache: The cache to set + * + * Unmark the inode inuse before send close req. + */ +static inline void fscache_set_inode_unmark_early(struct fscache_cache *cache) +{ + set_bit(FSCACHE_CACHE_EARLY_UNMARK_INUSE, &cache->flags); +} + +/** + * fscache_test_inode_unmark_early - Check whether the inode need to + * unmark early + * @cache: The cache to query + * + * Indicates whether we need to unmark the inode inuse early. + */ +static inline bool fscache_test_inode_unmark_early(struct fscache_cache *cache) +{ + return test_bit(FSCACHE_CACHE_EARLY_UNMARK_INUSE, &cache->flags); +} + #ifdef CONFIG_FSCACHE_STATS extern atomic_t fscache_n_read; extern atomic_t fscache_n_write; -- 2.39.2

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[PATCH OLK-6.6] efi: Don't map the entire mokvar table to determine its size
by Kaixiong Yu 22 Apr '25

22 Apr '25

From: Peter Jones <pjones(a)redhat.com> stable inclusion from stable-v6.6.83 commit ea3f0b362dfe4ef885ef812bfaf4088176422c91 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBWVU7 CVE: CVE-2025-21872 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 2b90e7ace79774a3540ce569e000388f8d22c9e0 upstream. Currently, when validating the mokvar table, we (re)map the entire table on each iteration of the loop, adding space as we discover new entries. If the table grows over a certain size, this fails due to limitations of early_memmap(), and we get a failure and traceback: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 0 at mm/early_ioremap.c:139 __early_ioremap+0xef/0x220 ... Call Trace: <TASK> ? __early_ioremap+0xef/0x220 ? __warn.cold+0x93/0xfa ? __early_ioremap+0xef/0x220 ? report_bug+0xff/0x140 ? early_fixup_exception+0x5d/0xb0 ? early_idt_handler_common+0x2f/0x3a ? __early_ioremap+0xef/0x220 ? efi_mokvar_table_init+0xce/0x1d0 ? setup_arch+0x864/0xc10 ? start_kernel+0x6b/0xa10 ? x86_64_start_reservations+0x24/0x30 ? x86_64_start_kernel+0xed/0xf0 ? common_startup_64+0x13e/0x141 </TASK> ---[ end trace 0000000000000000 ]--- mokvar: Failed to map EFI MOKvar config table pa=0x7c4c3000, size=265187. Mapping the entire structure isn't actually necessary, as we don't ever need more than one entry header mapped at once. Changes efi_mokvar_table_init() to only map each entry header, not the entire table, when determining the table size. Since we're not mapping any data past the variable name, it also changes the code to enforce that each variable name is NUL terminated, rather than attempting to verify it in place. Cc: <stable(a)vger.kernel.org> Signed-off-by: Peter Jones <pjones(a)redhat.com> Signed-off-by: Ard Biesheuvel <ardb(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Kaixiong Yu <yukaixiong(a)huawei.com> --- drivers/firmware/efi/mokvar-table.c | 42 +++++++++-------------------- 1 file changed, 13 insertions(+), 29 deletions(-) diff --git a/drivers/firmware/efi/mokvar-table.c b/drivers/firmware/efi/mokvar-table.c index 5ed0602c2f75..4eb0dff4dfaf 100644 --- a/drivers/firmware/efi/mokvar-table.c +++ b/drivers/firmware/efi/mokvar-table.c @@ -103,9 +103,7 @@ void __init efi_mokvar_table_init(void) void *va = NULL; unsigned long cur_offset = 0; unsigned long offset_limit; - unsigned long map_size = 0; unsigned long map_size_needed = 0; - unsigned long size; struct efi_mokvar_table_entry *mokvar_entry; int err; @@ -134,48 +132,34 @@ void __init efi_mokvar_table_init(void) */ err = -EINVAL; while (cur_offset + sizeof(*mokvar_entry) <= offset_limit) { - mokvar_entry = va + cur_offset; - map_size_needed = cur_offset + sizeof(*mokvar_entry); - if (map_size_needed > map_size) { - if (va) - early_memunmap(va, map_size); - /* - * Map a little more than the fixed size entry - * header, anticipating some data. It's safe to - * do so as long as we stay within current memory - * descriptor. - */ - map_size = min(map_size_needed + 2*EFI_PAGE_SIZE, - offset_limit); - va = early_memremap(efi.mokvar_table, map_size); - if (!va) { - pr_err("Failed to map EFI MOKvar config table pa=0x%lx, size=%lu.\n", - efi.mokvar_table, map_size); - return; - } - mokvar_entry = va + cur_offset; + if (va) + early_memunmap(va, sizeof(*mokvar_entry)); + va = early_memremap(efi.mokvar_table + cur_offset, sizeof(*mokvar_entry)); + if (!va) { + pr_err("Failed to map EFI MOKvar config table pa=0x%lx, size=%zu.\n", + efi.mokvar_table + cur_offset, sizeof(*mokvar_entry)); + return; } + mokvar_entry = va; /* Check for last sentinel entry */ if (mokvar_entry->name[0] == '\0') { if (mokvar_entry->data_size != 0) break; err = 0; + map_size_needed = cur_offset + sizeof(*mokvar_entry); break; } - /* Sanity check that the name is null terminated */ - size = strnlen(mokvar_entry->name, - sizeof(mokvar_entry->name)); - if (size >= sizeof(mokvar_entry->name)) - break; + /* Enforce that the name is NUL terminated */ + mokvar_entry->name[sizeof(mokvar_entry->name) - 1] = '\0'; /* Advance to the next entry */ - cur_offset = map_size_needed + mokvar_entry->data_size; + cur_offset += sizeof(*mokvar_entry) + mokvar_entry->data_size; } if (va) - early_memunmap(va, map_size); + early_memunmap(va, sizeof(*mokvar_entry)); if (err) { pr_err("EFI MOKvar config table is not valid\n"); return; -- 2.34.1

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[PATCH V3 OLK-6.6 0/4] Backport mainline patches to avoid crash caused by rsize being 0
by Wang Zhaolong 22 Apr '25

22 Apr '25

vi -> V2 Revert temporary solution V2 -> V3 commit message adjust for checkpatch warning Wang Zhaolong (4): Revert "cifs: Prevent NULL pointer dereference caused by cifs_sb->rsize is 0" smb:client: smb: client: Add reverse mapping from tcon to superblocks smb: client: Store original IO parameters and prevent zero IO sizes smb: client: Update IO sizes after reconnection fs/smb/client/cifs_fs_sb.h | 1 + fs/smb/client/cifsglob.h | 3 ++- fs/smb/client/connect.c | 20 +++++++++++++++----- fs/smb/client/fs_context.c | 2 ++ fs/smb/client/fs_context.h | 3 +++ fs/smb/client/misc.c | 2 ++ fs/smb/client/smb1ops.c | 6 +++--- fs/smb/client/smb2ops.c | 27 +++++++++++++++++++-------- fs/smb/client/smb2pdu.c | 24 ++++++++++++++++++++++-- fs/smb/common/smb2pdu.h | 3 +++ 10 files changed, 72 insertions(+), 19 deletions(-) -- 2.34.3

2 5

[PATCH OLK-5.10 0/8] arm64: Support xcall prefetch
by Jinjie Ruan 22 Apr '25

22 Apr '25

Support xcall prefetch. Jinjie Ruan (2): arm64: Introduce Xint software solution arm64: Add debugfs dir for xint Liao Chen (1): revert kpti bypass Yipeng Zou (5): arm64: Introduce xcall a faster svc exception handling arm64: Faster SVC exception handler with xcall xcall: introduce xcall_select to implement a custom xcall function eventpoll: xcall: Support sync and async prefetch data in epoll xcall: eventpoll: add tracepoint arch/Kconfig | 64 ++++++ arch/arm64/Kconfig | 2 + arch/arm64/configs/openeuler_defconfig | 4 + arch/arm64/include/asm/cpucaps.h | 2 + arch/arm64/include/asm/exception.h | 6 + arch/arm64/include/asm/syscall.h | 14 ++ arch/arm64/include/asm/syscall_wrapper.h | 25 +++ arch/arm64/kernel/asm-offsets.c | 3 + arch/arm64/kernel/cpufeature.c | 54 +++++ arch/arm64/kernel/entry-common.c | 22 ++ arch/arm64/kernel/entry.S | 183 ++++++++++++++- arch/arm64/kernel/sys.c | 20 ++ arch/arm64/kernel/syscall.c | 69 ++++++ drivers/irqchip/irq-gic-v3.c | 123 ++++++++++ fs/eventpoll.c | 275 ++++++++++++++++++++++- fs/open.c | 4 + fs/proc/base.c | 201 +++++++++++++++++ fs/read_write.c | 65 +++++- include/linux/fs.h | 30 +++ include/linux/hardirq.h | 5 + include/linux/irqchip/arm-gic-v3.h | 13 ++ include/linux/sched.h | 8 + include/linux/sched/task.h | 8 + include/linux/syscalls.h | 19 ++ include/trace/events/fs.h | 91 ++++++++ include/uapi/asm-generic/unistd.h | 11 + kernel/fork.c | 45 ++++ kernel/irq/debugfs.c | 33 +++ kernel/irq/internals.h | 18 ++ kernel/irq/irqdesc.c | 19 ++ kernel/irq/proc.c | 10 + kernel/softirq.c | 73 ++++++ kernel/sysctl.c | 36 +++ 33 files changed, 1548 insertions(+), 7 deletions(-) -- 2.34.1

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[PATCH V2 OLK-6.6 0/4] Backport mainline patches to avoid crash caused by rsize being 0
by Wang Zhaolong 22 Apr '25

22 Apr '25

vi -> V2 Revert temporary solution Wang Zhaolong (4): Revert "cifs: Prevent NULL pointer dereference caused by cifs_sb->rsize is 0" smb:client: smb: client: Add reverse mapping from tcon to superblocks smb: client: Store original IO parameters and prevent zero IO sizes smb: client: Update IO sizes after reconnection fs/smb/client/cifs_fs_sb.h | 1 + fs/smb/client/cifsglob.h | 3 ++- fs/smb/client/connect.c | 20 +++++++++++++++----- fs/smb/client/fs_context.c | 2 ++ fs/smb/client/fs_context.h | 3 +++ fs/smb/client/misc.c | 2 ++ fs/smb/client/smb1ops.c | 6 +++--- fs/smb/client/smb2ops.c | 27 +++++++++++++++++++-------- fs/smb/client/smb2pdu.c | 24 ++++++++++++++++++++++-- fs/smb/common/smb2pdu.h | 3 +++ 10 files changed, 72 insertions(+), 19 deletions(-) -- 2.34.3

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