ghsa-95jr-p4jm-v55x
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
bfq: fix use-after-free in bfq_dispatch_request
KASAN reports a use-after-free report when doing normal scsi-mq test
[69832.239032] ================================================================== [69832.241810] BUG: KASAN: use-after-free in bfq_dispatch_request+0x1045/0x44b0 [69832.243267] Read of size 8 at addr ffff88802622ba88 by task kworker/3:1H/155 [69832.244656] [69832.245007] CPU: 3 PID: 155 Comm: kworker/3:1H Not tainted 5.10.0-10295-g576c6382529e #8 [69832.246626] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [69832.249069] Workqueue: kblockd blk_mq_run_work_fn [69832.250022] Call Trace: [69832.250541] dump_stack+0x9b/0xce [69832.251232] ? bfq_dispatch_request+0x1045/0x44b0 [69832.252243] print_address_description.constprop.6+0x3e/0x60 [69832.253381] ? __cpuidle_text_end+0x5/0x5 [69832.254211] ? vprintk_func+0x6b/0x120 [69832.254994] ? bfq_dispatch_request+0x1045/0x44b0 [69832.255952] ? bfq_dispatch_request+0x1045/0x44b0 [69832.256914] kasan_report.cold.9+0x22/0x3a [69832.257753] ? bfq_dispatch_request+0x1045/0x44b0 [69832.258755] check_memory_region+0x1c1/0x1e0 [69832.260248] bfq_dispatch_request+0x1045/0x44b0 [69832.261181] ? bfq_bfqq_expire+0x2440/0x2440 [69832.262032] ? blk_mq_delay_run_hw_queues+0xf9/0x170 [69832.263022] __blk_mq_do_dispatch_sched+0x52f/0x830 [69832.264011] ? blk_mq_sched_request_inserted+0x100/0x100 [69832.265101] __blk_mq_sched_dispatch_requests+0x398/0x4f0 [69832.266206] ? blk_mq_do_dispatch_ctx+0x570/0x570 [69832.267147] ? __switch_to+0x5f4/0xee0 [69832.267898] blk_mq_sched_dispatch_requests+0xdf/0x140 [69832.268946] __blk_mq_run_hw_queue+0xc0/0x270 [69832.269840] blk_mq_run_work_fn+0x51/0x60 [69832.278170] process_one_work+0x6d4/0xfe0 [69832.278984] worker_thread+0x91/0xc80 [69832.279726] ? __kthread_parkme+0xb0/0x110 [69832.280554] ? process_one_work+0xfe0/0xfe0 [69832.281414] kthread+0x32d/0x3f0 [69832.282082] ? kthread_park+0x170/0x170 [69832.282849] ret_from_fork+0x1f/0x30 [69832.283573] [69832.283886] Allocated by task 7725: [69832.284599] kasan_save_stack+0x19/0x40 [69832.285385] __kasan_kmalloc.constprop.2+0xc1/0xd0 [69832.286350] kmem_cache_alloc_node+0x13f/0x460 [69832.287237] bfq_get_queue+0x3d4/0x1140 [69832.287993] bfq_get_bfqq_handle_split+0x103/0x510 [69832.289015] bfq_init_rq+0x337/0x2d50 [69832.289749] bfq_insert_requests+0x304/0x4e10 [69832.290634] blk_mq_sched_insert_requests+0x13e/0x390 [69832.291629] blk_mq_flush_plug_list+0x4b4/0x760 [69832.292538] blk_flush_plug_list+0x2c5/0x480 [69832.293392] io_schedule_prepare+0xb2/0xd0 [69832.294209] io_schedule_timeout+0x13/0x80 [69832.295014] wait_for_common_io.constprop.1+0x13c/0x270 [69832.296137] submit_bio_wait+0x103/0x1a0 [69832.296932] blkdev_issue_discard+0xe6/0x160 [69832.297794] blk_ioctl_discard+0x219/0x290 [69832.298614] blkdev_common_ioctl+0x50a/0x1750 [69832.304715] blkdev_ioctl+0x470/0x600 [69832.305474] block_ioctl+0xde/0x120 [69832.306232] vfs_ioctl+0x6c/0xc0 [69832.306877] __se_sys_ioctl+0x90/0xa0 [69832.307629] do_syscall_64+0x2d/0x40 [69832.308362] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [69832.309382] [69832.309701] Freed by task 155: [69832.310328] kasan_save_stack+0x19/0x40 [69832.311121] kasan_set_track+0x1c/0x30 [69832.311868] kasan_set_free_info+0x1b/0x30 [69832.312699] __kasan_slab_free+0x111/0x160 [69832.313524] kmem_cache_free+0x94/0x460 [69832.314367] bfq_put_queue+0x582/0x940 [69832.315112] __bfq_bfqd_reset_in_service+0x166/0x1d0 [69832.317275] bfq_bfqq_expire+0xb27/0x2440 [69832.318084] bfq_dispatch_request+0x697/0x44b0 [69832.318991] __blk_mq_do_dispatch_sched+0x52f/0x830 [69832.319984] __blk_mq_sched_dispatch_requests+0x398/0x4f0 [69832.321087] blk_mq_sched_dispatch_requests+0xdf/0x140 [69832.322225] __blk_mq_run_hw_queue+0xc0/0x270 [69832.323114] blk_mq_run_work_fn+0x51/0x6 ---truncated---
{
"affected": [],
"aliases": [
"CVE-2022-49176"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-26T07:00:54Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbfq: fix use-after-free in bfq_dispatch_request\n\nKASAN reports a use-after-free report when doing normal scsi-mq test\n\n[69832.239032] ==================================================================\n[69832.241810] BUG: KASAN: use-after-free in bfq_dispatch_request+0x1045/0x44b0\n[69832.243267] Read of size 8 at addr ffff88802622ba88 by task kworker/3:1H/155\n[69832.244656]\n[69832.245007] CPU: 3 PID: 155 Comm: kworker/3:1H Not tainted 5.10.0-10295-g576c6382529e #8\n[69832.246626] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\n[69832.249069] Workqueue: kblockd blk_mq_run_work_fn\n[69832.250022] Call Trace:\n[69832.250541] dump_stack+0x9b/0xce\n[69832.251232] ? bfq_dispatch_request+0x1045/0x44b0\n[69832.252243] print_address_description.constprop.6+0x3e/0x60\n[69832.253381] ? __cpuidle_text_end+0x5/0x5\n[69832.254211] ? vprintk_func+0x6b/0x120\n[69832.254994] ? bfq_dispatch_request+0x1045/0x44b0\n[69832.255952] ? bfq_dispatch_request+0x1045/0x44b0\n[69832.256914] kasan_report.cold.9+0x22/0x3a\n[69832.257753] ? bfq_dispatch_request+0x1045/0x44b0\n[69832.258755] check_memory_region+0x1c1/0x1e0\n[69832.260248] bfq_dispatch_request+0x1045/0x44b0\n[69832.261181] ? bfq_bfqq_expire+0x2440/0x2440\n[69832.262032] ? blk_mq_delay_run_hw_queues+0xf9/0x170\n[69832.263022] __blk_mq_do_dispatch_sched+0x52f/0x830\n[69832.264011] ? blk_mq_sched_request_inserted+0x100/0x100\n[69832.265101] __blk_mq_sched_dispatch_requests+0x398/0x4f0\n[69832.266206] ? blk_mq_do_dispatch_ctx+0x570/0x570\n[69832.267147] ? __switch_to+0x5f4/0xee0\n[69832.267898] blk_mq_sched_dispatch_requests+0xdf/0x140\n[69832.268946] __blk_mq_run_hw_queue+0xc0/0x270\n[69832.269840] blk_mq_run_work_fn+0x51/0x60\n[69832.278170] process_one_work+0x6d4/0xfe0\n[69832.278984] worker_thread+0x91/0xc80\n[69832.279726] ? __kthread_parkme+0xb0/0x110\n[69832.280554] ? process_one_work+0xfe0/0xfe0\n[69832.281414] kthread+0x32d/0x3f0\n[69832.282082] ? kthread_park+0x170/0x170\n[69832.282849] ret_from_fork+0x1f/0x30\n[69832.283573]\n[69832.283886] Allocated by task 7725:\n[69832.284599] kasan_save_stack+0x19/0x40\n[69832.285385] __kasan_kmalloc.constprop.2+0xc1/0xd0\n[69832.286350] kmem_cache_alloc_node+0x13f/0x460\n[69832.287237] bfq_get_queue+0x3d4/0x1140\n[69832.287993] bfq_get_bfqq_handle_split+0x103/0x510\n[69832.289015] bfq_init_rq+0x337/0x2d50\n[69832.289749] bfq_insert_requests+0x304/0x4e10\n[69832.290634] blk_mq_sched_insert_requests+0x13e/0x390\n[69832.291629] blk_mq_flush_plug_list+0x4b4/0x760\n[69832.292538] blk_flush_plug_list+0x2c5/0x480\n[69832.293392] io_schedule_prepare+0xb2/0xd0\n[69832.294209] io_schedule_timeout+0x13/0x80\n[69832.295014] wait_for_common_io.constprop.1+0x13c/0x270\n[69832.296137] submit_bio_wait+0x103/0x1a0\n[69832.296932] blkdev_issue_discard+0xe6/0x160\n[69832.297794] blk_ioctl_discard+0x219/0x290\n[69832.298614] blkdev_common_ioctl+0x50a/0x1750\n[69832.304715] blkdev_ioctl+0x470/0x600\n[69832.305474] block_ioctl+0xde/0x120\n[69832.306232] vfs_ioctl+0x6c/0xc0\n[69832.306877] __se_sys_ioctl+0x90/0xa0\n[69832.307629] do_syscall_64+0x2d/0x40\n[69832.308362] entry_SYSCALL_64_after_hwframe+0x44/0xa9\n[69832.309382]\n[69832.309701] Freed by task 155:\n[69832.310328] kasan_save_stack+0x19/0x40\n[69832.311121] kasan_set_track+0x1c/0x30\n[69832.311868] kasan_set_free_info+0x1b/0x30\n[69832.312699] __kasan_slab_free+0x111/0x160\n[69832.313524] kmem_cache_free+0x94/0x460\n[69832.314367] bfq_put_queue+0x582/0x940\n[69832.315112] __bfq_bfqd_reset_in_service+0x166/0x1d0\n[69832.317275] bfq_bfqq_expire+0xb27/0x2440\n[69832.318084] bfq_dispatch_request+0x697/0x44b0\n[69832.318991] __blk_mq_do_dispatch_sched+0x52f/0x830\n[69832.319984] __blk_mq_sched_dispatch_requests+0x398/0x4f0\n[69832.321087] blk_mq_sched_dispatch_requests+0xdf/0x140\n[69832.322225] __blk_mq_run_hw_queue+0xc0/0x270\n[69832.323114] blk_mq_run_work_fn+0x51/0x6\n---truncated---",
"id": "GHSA-95jr-p4jm-v55x",
"modified": "2025-02-27T21:32:13Z",
"published": "2025-02-27T21:32:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49176"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/080665e2c3cbfc68359b9a348a3546ed9b908e7a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/40b4ba0030e0b02cbacd424ebb9f4c8b0976c786"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5117c9ff4c2ebae0f5c2c262d42a25a8fbc086e6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5687958bf18f84384d809f521210d0f5deed03b0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/74e610b5ee0d95e751280567100509eb11517efa"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ab552fcb17cc9e4afe0e4ac4df95fc7b30e8490a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/df6e00b1a53c57dca82c63b5ecbcad5452231bc7"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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