GHSA-9P4W-X9R2-X682
Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-19 15:31In the Linux kernel, the following vulnerability has been resolved:
md-raid10: fix KASAN warning
There's a KASAN warning in raid10_remove_disk when running the lvm test lvconvert-raid-reshape.sh. We fix this warning by verifying that the value "number" is valid.
BUG: KASAN: slab-out-of-bounds in raid10_remove_disk+0x61/0x2a0 [raid10] Read of size 8 at addr ffff889108f3d300 by task mdX_raid10/124682
CPU: 3 PID: 124682 Comm: mdX_raid10 Not tainted 5.19.0-rc6 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014 Call Trace: dump_stack_lvl+0x34/0x44 print_report.cold+0x45/0x57a ? __lock_text_start+0x18/0x18 ? raid10_remove_disk+0x61/0x2a0 [raid10] kasan_report+0xa8/0xe0 ? raid10_remove_disk+0x61/0x2a0 [raid10] raid10_remove_disk+0x61/0x2a0 [raid10] Buffer I/O error on dev dm-76, logical block 15344, async page read ? __mutex_unlock_slowpath.constprop.0+0x1e0/0x1e0 remove_and_add_spares+0x367/0x8a0 [md_mod] ? super_written+0x1c0/0x1c0 [md_mod] ? mutex_trylock+0xac/0x120 ? _raw_spin_lock+0x72/0xc0 ? _raw_spin_lock_bh+0xc0/0xc0 md_check_recovery+0x848/0x960 [md_mod] raid10d+0xcf/0x3360 [raid10] ? sched_clock_cpu+0x185/0x1a0 ? rb_erase+0x4d4/0x620 ? var_wake_function+0xe0/0xe0 ? psi_group_change+0x411/0x500 ? preempt_count_sub+0xf/0xc0 ? _raw_spin_lock_irqsave+0x78/0xc0 ? __lock_text_start+0x18/0x18 ? raid10_sync_request+0x36c0/0x36c0 [raid10] ? preempt_count_sub+0xf/0xc0 ? _raw_spin_unlock_irqrestore+0x19/0x40 ? del_timer_sync+0xa9/0x100 ? try_to_del_timer_sync+0xc0/0xc0 ? _raw_spin_lock_irqsave+0x78/0xc0 ? __lock_text_start+0x18/0x18 ? _raw_spin_unlock_irq+0x11/0x24 ? __list_del_entry_valid+0x68/0xa0 ? finish_wait+0xa3/0x100 md_thread+0x161/0x260 [md_mod] ? unregister_md_personality+0xa0/0xa0 [md_mod] ? _raw_spin_lock_irqsave+0x78/0xc0 ? prepare_to_wait_event+0x2c0/0x2c0 ? unregister_md_personality+0xa0/0xa0 [md_mod] kthread+0x148/0x180 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30
Allocated by task 124495: kasan_save_stack+0x1e/0x40 __kasan_kmalloc+0x80/0xa0 setup_conf+0x140/0x5c0 [raid10] raid10_run+0x4cd/0x740 [raid10] md_run+0x6f9/0x1300 [md_mod] raid_ctr+0x2531/0x4ac0 [dm_raid] dm_table_add_target+0x2b0/0x620 [dm_mod] table_load+0x1c8/0x400 [dm_mod] ctl_ioctl+0x29e/0x560 [dm_mod] dm_compat_ctl_ioctl+0x7/0x20 [dm_mod] __do_compat_sys_ioctl+0xfa/0x160 do_syscall_64+0x90/0xc0 entry_SYSCALL_64_after_hwframe+0x46/0xb0
Last potentially related work creation: kasan_save_stack+0x1e/0x40 __kasan_record_aux_stack+0x9e/0xc0 kvfree_call_rcu+0x84/0x480 timerfd_release+0x82/0x140 L __fput+0xfa/0x400 task_work_run+0x80/0xc0 exit_to_user_mode_prepare+0x155/0x160 syscall_exit_to_user_mode+0x12/0x40 do_syscall_64+0x42/0xc0 entry_SYSCALL_64_after_hwframe+0x46/0xb0
Second to last potentially related work creation: kasan_save_stack+0x1e/0x40 __kasan_record_aux_stack+0x9e/0xc0 kvfree_call_rcu+0x84/0x480 timerfd_release+0x82/0x140 __fput+0xfa/0x400 task_work_run+0x80/0xc0 exit_to_user_mode_prepare+0x155/0x160 syscall_exit_to_user_mode+0x12/0x40 do_syscall_64+0x42/0xc0 entry_SYSCALL_64_after_hwframe+0x46/0xb0
The buggy address belongs to the object at ffff889108f3d200 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 0 bytes to the right of 256-byte region [ffff889108f3d200, ffff889108f3d300)
The buggy address belongs to the physical page: page:000000007ef2a34c refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1108f3c head:000000007ef2a34c order:2 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head|zone=2) raw: 4000000000010200 0000000000000000 dead000000000001 ffff889100042b40 raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected
Memory state around the buggy address: ffff889108f3d200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff889108f3d280: 00 00 ---truncated---
{
"affected": [],
"aliases": [
"CVE-2022-50211"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-18T11:15:51Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd-raid10: fix KASAN warning\n\nThere\u0027s a KASAN warning in raid10_remove_disk when running the lvm\ntest lvconvert-raid-reshape.sh. We fix this warning by verifying that the\nvalue \"number\" is valid.\n\nBUG: KASAN: slab-out-of-bounds in raid10_remove_disk+0x61/0x2a0 [raid10]\nRead of size 8 at addr ffff889108f3d300 by task mdX_raid10/124682\n\nCPU: 3 PID: 124682 Comm: mdX_raid10 Not tainted 5.19.0-rc6 #1\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x34/0x44\n print_report.cold+0x45/0x57a\n ? __lock_text_start+0x18/0x18\n ? raid10_remove_disk+0x61/0x2a0 [raid10]\n kasan_report+0xa8/0xe0\n ? raid10_remove_disk+0x61/0x2a0 [raid10]\n raid10_remove_disk+0x61/0x2a0 [raid10]\nBuffer I/O error on dev dm-76, logical block 15344, async page read\n ? __mutex_unlock_slowpath.constprop.0+0x1e0/0x1e0\n remove_and_add_spares+0x367/0x8a0 [md_mod]\n ? super_written+0x1c0/0x1c0 [md_mod]\n ? mutex_trylock+0xac/0x120\n ? _raw_spin_lock+0x72/0xc0\n ? _raw_spin_lock_bh+0xc0/0xc0\n md_check_recovery+0x848/0x960 [md_mod]\n raid10d+0xcf/0x3360 [raid10]\n ? sched_clock_cpu+0x185/0x1a0\n ? rb_erase+0x4d4/0x620\n ? var_wake_function+0xe0/0xe0\n ? psi_group_change+0x411/0x500\n ? preempt_count_sub+0xf/0xc0\n ? _raw_spin_lock_irqsave+0x78/0xc0\n ? __lock_text_start+0x18/0x18\n ? raid10_sync_request+0x36c0/0x36c0 [raid10]\n ? preempt_count_sub+0xf/0xc0\n ? _raw_spin_unlock_irqrestore+0x19/0x40\n ? del_timer_sync+0xa9/0x100\n ? try_to_del_timer_sync+0xc0/0xc0\n ? _raw_spin_lock_irqsave+0x78/0xc0\n ? __lock_text_start+0x18/0x18\n ? _raw_spin_unlock_irq+0x11/0x24\n ? __list_del_entry_valid+0x68/0xa0\n ? finish_wait+0xa3/0x100\n md_thread+0x161/0x260 [md_mod]\n ? unregister_md_personality+0xa0/0xa0 [md_mod]\n ? _raw_spin_lock_irqsave+0x78/0xc0\n ? prepare_to_wait_event+0x2c0/0x2c0\n ? unregister_md_personality+0xa0/0xa0 [md_mod]\n kthread+0x148/0x180\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork+0x1f/0x30\n \u003c/TASK\u003e\n\nAllocated by task 124495:\n kasan_save_stack+0x1e/0x40\n __kasan_kmalloc+0x80/0xa0\n setup_conf+0x140/0x5c0 [raid10]\n raid10_run+0x4cd/0x740 [raid10]\n md_run+0x6f9/0x1300 [md_mod]\n raid_ctr+0x2531/0x4ac0 [dm_raid]\n dm_table_add_target+0x2b0/0x620 [dm_mod]\n table_load+0x1c8/0x400 [dm_mod]\n ctl_ioctl+0x29e/0x560 [dm_mod]\n dm_compat_ctl_ioctl+0x7/0x20 [dm_mod]\n __do_compat_sys_ioctl+0xfa/0x160\n do_syscall_64+0x90/0xc0\n entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nLast potentially related work creation:\n kasan_save_stack+0x1e/0x40\n __kasan_record_aux_stack+0x9e/0xc0\n kvfree_call_rcu+0x84/0x480\n timerfd_release+0x82/0x140\nL __fput+0xfa/0x400\n task_work_run+0x80/0xc0\n exit_to_user_mode_prepare+0x155/0x160\n syscall_exit_to_user_mode+0x12/0x40\n do_syscall_64+0x42/0xc0\n entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nSecond to last potentially related work creation:\n kasan_save_stack+0x1e/0x40\n __kasan_record_aux_stack+0x9e/0xc0\n kvfree_call_rcu+0x84/0x480\n timerfd_release+0x82/0x140\n __fput+0xfa/0x400\n task_work_run+0x80/0xc0\n exit_to_user_mode_prepare+0x155/0x160\n syscall_exit_to_user_mode+0x12/0x40\n do_syscall_64+0x42/0xc0\n entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nThe buggy address belongs to the object at ffff889108f3d200\n which belongs to the cache kmalloc-256 of size 256\nThe buggy address is located 0 bytes to the right of\n 256-byte region [ffff889108f3d200, ffff889108f3d300)\n\nThe buggy address belongs to the physical page:\npage:000000007ef2a34c refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1108f3c\nhead:000000007ef2a34c order:2 compound_mapcount:0 compound_pincount:0\nflags: 0x4000000000010200(slab|head|zone=2)\nraw: 4000000000010200 0000000000000000 dead000000000001 ffff889100042b40\nraw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000\npage dumped because: kasan: bad access detected\n\nMemory state around the buggy address:\n ffff889108f3d200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n ffff889108f3d280: 00 00\n---truncated---",
"id": "GHSA-9p4w-x9r2-x682",
"modified": "2025-11-19T15:31:30Z",
"published": "2025-06-18T12:30:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50211"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0f4d18cbea4a6e37a05fd8ee2887439f85211110"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5f57843565131bb782388f9d993f9ee8f453dee1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5fd4ffa2372a41361d2bdd27ea5730e4e673240c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/75fbd370a2cec9e92f48285bd90735ed0c837f52"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7a6ccc8fa192fd357c2d5d4c6ce67c834a179e23"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bcbdc26a44aba488d2f7122f2d66801bccb74733"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bf30b9ba09b0ac2a10f04dce2b0835ec4d178aa6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ce839b9331c11780470f3d727b6fe3c2794a4620"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d17f744e883b2f8d13cca252d71cfe8ace346f7d"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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