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[PATCH OLK-6.6 0/3] LTS Conflicts Backport
by Tengda Wu 21 May '25

21 May '25

This patch series is going to porting two upstream stable patches, and fixing a kabi breakage during porting. Tengda Wu (1): x86/ptrace: Fix kabi breakage in struct pt_regs Xin Li (2): x86/ptrace: Cleanup the definition of the pt_regs structure x86/ptrace: Add FRED additional information to the pt_regs structure arch/x86/entry/vsyscall/vsyscall_64.c | 2 +- arch/x86/include/asm/ptrace.h | 105 ++++++++++++++++++++++---- arch/x86/kernel/process_64.c | 2 +- 3 files changed, 94 insertions(+), 15 deletions(-) -- 2.34.1

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[PATCH OLK-6.6] ext4: ignore xattrs past end
by Yongjian Sun 21 May '25

21 May '25

From: Bhupesh <bhupesh(a)igalia.com> mainline inclusion from mainline-v6.15-rc1 commit c8e008b60492cf6fd31ef127aea6d02fd3d314cd category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IC5BL7 CVE: CVE-2025-37738 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Once inside 'ext4_xattr_inode_dec_ref_all' we should ignore xattrs entries past the 'end' entry. This fixes the following KASAN reported issue: ================================================================== BUG: KASAN: slab-use-after-free in ext4_xattr_inode_dec_ref_all+0xb8c/0xe90 Read of size 4 at addr ffff888012c120c4 by task repro/2065 CPU: 1 UID: 0 PID: 2065 Comm: repro Not tainted 6.13.0-rc2+ #11 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x1fd/0x300 ? tcp_gro_dev_warn+0x260/0x260 ? _printk+0xc0/0x100 ? read_lock_is_recursive+0x10/0x10 ? irq_work_queue+0x72/0xf0 ? __virt_addr_valid+0x17b/0x4b0 print_address_description+0x78/0x390 print_report+0x107/0x1f0 ? __virt_addr_valid+0x17b/0x4b0 ? __virt_addr_valid+0x3ff/0x4b0 ? __phys_addr+0xb5/0x160 ? ext4_xattr_inode_dec_ref_all+0xb8c/0xe90 kasan_report+0xcc/0x100 ? ext4_xattr_inode_dec_ref_all+0xb8c/0xe90 ext4_xattr_inode_dec_ref_all+0xb8c/0xe90 ? ext4_xattr_delete_inode+0xd30/0xd30 ? __ext4_journal_ensure_credits+0x5f0/0x5f0 ? __ext4_journal_ensure_credits+0x2b/0x5f0 ? inode_update_timestamps+0x410/0x410 ext4_xattr_delete_inode+0xb64/0xd30 ? ext4_truncate+0xb70/0xdc0 ? ext4_expand_extra_isize_ea+0x1d20/0x1d20 ? __ext4_mark_inode_dirty+0x670/0x670 ? ext4_journal_check_start+0x16f/0x240 ? ext4_inode_is_fast_symlink+0x2f2/0x3a0 ext4_evict_inode+0xc8c/0xff0 ? ext4_inode_is_fast_symlink+0x3a0/0x3a0 ? do_raw_spin_unlock+0x53/0x8a0 ? ext4_inode_is_fast_symlink+0x3a0/0x3a0 evict+0x4ac/0x950 ? proc_nr_inodes+0x310/0x310 ? trace_ext4_drop_inode+0xa2/0x220 ? _raw_spin_unlock+0x1a/0x30 ? iput+0x4cb/0x7e0 do_unlinkat+0x495/0x7c0 ? try_break_deleg+0x120/0x120 ? 0xffffffff81000000 ? __check_object_size+0x15a/0x210 ? strncpy_from_user+0x13e/0x250 ? getname_flags+0x1dc/0x530 __x64_sys_unlinkat+0xc8/0xf0 do_syscall_64+0x65/0x110 entry_SYSCALL_64_after_hwframe+0x67/0x6f RIP: 0033:0x434ffd Code: 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 8 RSP: 002b:00007ffc50fa7b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000107 RAX: ffffffffffffffda RBX: 00007ffc50fa7e18 RCX: 0000000000434ffd RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000005 RBP: 00007ffc50fa7be0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc50fa7e08 R14: 00000000004bbf30 R15: 0000000000000001 </TASK> The buggy address belongs to the object at ffff888012c12000 which belongs to the cache filp of size 360 The buggy address is located 196 bytes inside of freed 360-byte region [ffff888012c12000, ffff888012c12168) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12c12 head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0x40(head|node=0|zone=0) page_type: f5(slab) raw: 0000000000000040 ffff888000ad7640 ffffea0000497a00 dead000000000004 raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000 head: 0000000000000040 ffff888000ad7640 ffffea0000497a00 dead000000000004 head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000 head: 0000000000000001 ffffea00004b0481 ffffffffffffffff 0000000000000000 head: 0000000000000002 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888012c11f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888012c12000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb > ffff888012c12080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888012c12100: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc ffff888012c12180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== Reported-by: syzbot+b244bda78289b00204ed(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=b244bda78289b00204ed Suggested-by: Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> Signed-off-by: Bhupesh <bhupesh(a)igalia.com> Link: https://patch.msgid.link/20250128082751.124948-2-bhupesh@igalia.com Signed-off-by: Theodore Ts'o <tytso(a)mit.edu> Signed-off-by: Yongjian Sun <sunyongjian1(a)huawei.com> --- fs/ext4/xattr.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index b44726015c21..b6bdb253ad34 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -1173,15 +1173,24 @@ ext4_xattr_inode_dec_ref_all(handle_t *handle, struct inode *parent, { struct inode *ea_inode; struct ext4_xattr_entry *entry; + struct ext4_iloc iloc; bool dirty = false; unsigned int ea_ino; int err; int credits; + void *end; + + if (block_csum) + end = (void *)bh->b_data + bh->b_size; + else { + ext4_get_inode_loc(parent, &iloc); + end = (void *)ext4_raw_inode(&iloc) + EXT4_SB(parent->i_sb)->s_inode_size; + } /* One credit for dec ref on ea_inode, one for orphan list addition, */ credits = 2 + extra_credits; - for (entry = first; !IS_LAST_ENTRY(entry); + for (entry = first; (void *)entry < end && !IS_LAST_ENTRY(entry); entry = EXT4_XATTR_NEXT(entry)) { if (!entry->e_value_inum) continue; -- 2.39.2

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[PATCH OLK-5.10] ftrace: Add cond_resched() to ftrace_graph_set_hash()
by Tengda Wu 21 May '25

21 May '25

From: zhoumin <teczm(a)foxmail.com> stable inclusion from stable-5.10.237 commit 618655d54c5f8af5d57b77491d08c0f0ff77d114 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IC991T CVE: CVE-2025-37940 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 42ea22e754ba4f2b86f8760ca27f6f71da2d982c upstream. When the kernel contains a large number of functions that can be traced, the loop in ftrace_graph_set_hash() may take a lot of time to execute. This may trigger the softlockup watchdog. Add cond_resched() within the loop to allow the kernel to remain responsive even when processing a large number of functions. This matches the cond_resched() that is used in other locations of the code that iterates over all functions that can be traced. Cc: stable(a)vger.kernel.org Fixes: b9b0c831bed26 ("ftrace: Convert graph filter to use hash tables") Link: https://lore.kernel.org/tencent_3E06CE338692017B5809534B9C5C03DA7705@qq.com Signed-off-by: zhoumin <teczm(a)foxmail.com> Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Tengda Wu <wutengda2(a)huawei.com> --- kernel/trace/ftrace.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 095ba8ab36cf..50e737ee38bf 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -6105,6 +6105,7 @@ ftrace_graph_set_hash(struct ftrace_hash *hash, char *buffer) } } } + cond_resched(); } while_for_each_ftrace_rec(); out: mutex_unlock(&ftrace_lock); -- 2.34.1

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[PATCH OLK-6.6] ftrace: Add cond_resched() to ftrace_graph_set_hash()
by Tengda Wu 21 May '25

21 May '25

From: zhoumin <teczm(a)foxmail.com> stable inclusion from stable-6.6.91 commit 5d336ac215e5c76e43ef4bca9ba699835e53e2fd category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IC991T CVE: CVE-2025-37940 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 42ea22e754ba4f2b86f8760ca27f6f71da2d982c upstream. When the kernel contains a large number of functions that can be traced, the loop in ftrace_graph_set_hash() may take a lot of time to execute. This may trigger the softlockup watchdog. Add cond_resched() within the loop to allow the kernel to remain responsive even when processing a large number of functions. This matches the cond_resched() that is used in other locations of the code that iterates over all functions that can be traced. Cc: stable(a)vger.kernel.org Fixes: b9b0c831bed26 ("ftrace: Convert graph filter to use hash tables") Link: https://lore.kernel.org/tencent_3E06CE338692017B5809534B9C5C03DA7705@qq.com Signed-off-by: zhoumin <teczm(a)foxmail.com> Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Tengda Wu <wutengda2(a)huawei.com> --- kernel/trace/ftrace.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 99fdeee3bcd8..580ceb75f8c3 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -6325,6 +6325,7 @@ ftrace_graph_set_hash(struct ftrace_hash *hash, char *buffer) } } } + cond_resched(); } while_for_each_ftrace_rec(); out: mutex_unlock(&ftrace_lock); -- 2.34.1

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[PATCH OLK-6.6 0/3] LTS Conflicts Backport
by Tengda Wu 21 May '25

21 May '25

This patch series is going to porting two upstream stable patches, and fixing a kabi breakage during porting. Tengda Wu (1): x86/ptrace: Fix kabi breakage in struct pt_regs Xin Li (2): x86/ptrace: Cleanup the definition of the pt_regs structure x86/ptrace: Add FRED additional information to the pt_regs structure arch/x86/entry/vsyscall/vsyscall_64.c | 2 +- arch/x86/include/asm/ptrace.h | 105 ++++++++++++++++++++++---- arch/x86/kernel/process_64.c | 2 +- 3 files changed, 94 insertions(+), 15 deletions(-) -- 2.34.1

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openEuler Kernel SIG双周例会
by openEuler conference 21 May '25

21 May '25

您好！ Kernel 邀请您参加 2025-05-23 14:00 召开的WeLink会议(自动录制) 会议主题：openEuler Kernel SIG双周例会会议内容： 1. 进展update 2. 征集中（新增议题可回复本邮件申请，也可直接填报至会议纪要看板）会议链接：https://meeting.huaweicloud.com:36443/#/j/981717757 会议纪要：https://etherpad.openeuler.org/p/Kernel-meetings 更多资讯尽在：https://www.openeuler.org/zh/ Hello! Kernel invites you to attend the WeLink conference(auto recording) will be held at 2025-05-23 14:00, The subject of the conference is openEuler Kernel SIG双周例会 Summary: 1. 进展update 2. 征集中（新增议题可回复本邮件申请，也可直接填报至会议纪要看板） You can join the meeting at https://meeting.huaweicloud.com:36443/#/j/981717757 Add topics at https://etherpad.openeuler.org/p/Kernel-meetings More information: https://www.openeuler.org/en/

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[PATCH OLK-6.6 0/2] scsi: sg: fix refcount underflow in
by Zheng Qixing 21 May '25

21 May '25

Fix adaptation error in sg_release() during patch merge, revert this patch in patch 1. Re-merge the community fix in patch 2. Bart Van Assche (1): scsi: sg: Enable runtime power management Zheng Qixing (1): Revert "scsi: sg: Enable runtime power management" drivers/scsi/sg.c | 1 - 1 file changed, 1 deletion(-) -- 2.39.2

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[openeuler:openEuler-1.0-LTS 1365/1365] drivers/acpi/cppc_acpi.c:614:3-8: WARNING: NULL check before some freeing functions is not needed.
by kernel test robot 21 May '25

21 May '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 2eb609d2f89b2d85d89cb018c3f97050989807e2 commit: b8815fbbe89b0d15fa3296c3e57d2197a92f5bc0 [1365/1365] ACPI: CPPC: Fix cppc_cpufreq_init failed in CPU Hotplug situation config: x86_64-randconfig-102-20250103 (https://download.01.org/0day-ci/archive/20250521/202505211556.GuPF6Fy4-lkp@…) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202505211556.GuPF6Fy4-lkp@intel.com/ cocci warnings: (new ones prefixed by >>) >> drivers/acpi/cppc_acpi.c:614:3-8: WARNING: NULL check before some freeing functions is not needed. vim +614 drivers/acpi/cppc_acpi.c 576 577 int acpi_get_psd_map(struct cppc_cpudata **all_cpu_data) 578 { 579 struct cpc_desc **cpc_pptr, *cpc_ptr; 580 int parsed_core_num = 0; 581 int i, ret; 582 583 cpc_pptr = kcalloc(num_possible_cpus(), sizeof(void *), GFP_KERNEL); 584 if (!cpc_pptr) 585 return -ENOMEM; 586 for_each_possible_cpu(i) { 587 cpc_pptr[i] = kzalloc(sizeof(struct cpc_desc), GFP_KERNEL); 588 if (!cpc_pptr[i]) { 589 ret = -ENOMEM; 590 goto out; 591 } 592 } 593 594 /* 595 * We can not use acpi_get_devices() to walk the processor devices 596 * because some processor device is not present. 597 */ 598 ret = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, 599 ACPI_UINT32_MAX, acpi_parse_cpc, NULL, 600 cpc_pptr, (void **)&parsed_core_num); 601 if (ret) 602 goto out; 603 if (parsed_core_num != num_possible_cpus()) { 604 ret = -EINVAL; 605 goto out; 606 } 607 608 ret = __acpi_get_psd_map(all_cpu_data, cpc_pptr); 609 610 out: 611 for_each_possible_cpu(i) { 612 cpc_ptr = cpc_pptr[i]; 613 if (cpc_ptr) > 614 kfree(cpc_ptr); 615 } 616 kfree(cpc_pptr); 617 618 return ret; 619 } 620 EXPORT_SYMBOL_GPL(acpi_get_psd_map); 621 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6 0/4] Backport 6.6.55-6.6.60 LTS
by Wang Liang 21 May '25

21 May '25

Eric Dumazet (2): rtnetlink: change nlk->cb_mutex role rtnetlink: add RTNL_FLAG_DUMP_UNLOCKED flag Wang Liang (2): net: Fix kabi breakage in struct netlink_callback net: Fix kabi breakage in struct netlink_dump_control include/linux/netlink.h | 3 +++ include/net/rtnetlink.h | 1 + net/core/rtnetlink.c | 2 ++ net/netlink/af_netlink.c | 35 +++++++++++++++++++++-------------- net/netlink/af_netlink.h | 5 +++-- 5 files changed, 30 insertions(+), 16 deletions(-) -- 2.34.1

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[PATCH OLK-6.6] Add CFTYPE_NOT_ON_ROOT for qos_level
by Wang Tao 21 May '25

21 May '25

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8MF4R -------------------------------- cpu.qos_level shouldn't appear in /sys/fs/cgroup/cpu/. Fixes: 1621f4654db7 ("sched: Introduce qos scheduler for co-location") Signed-off-by: Wang Tao <wangtao554(a)huawei.com> --- kernel/sched/core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 7c40690ad56f..b41f3f30ef57 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -11818,6 +11818,7 @@ static struct cftype cpu_legacy_files[] = { #ifdef CONFIG_QOS_SCHED { .name = "qos_level", + .flags = CFTYPE_NOT_ON_ROOT, .read_s64 = cpu_qos_read, .write_s64 = cpu_qos_write, }, -- 2.34.1

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