{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-49176", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T01:49:39.280Z", "datePublished": "2025-02-26T01:55:30.586Z", "dateUpdated": "2026-05-11T18:54:36.427Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T18:54:36.427Z"}, "descriptions": [{"lang": "en", "value": "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---"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["block/bfq-iosched.c"], "versions": [{"version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", "lessThan": "74e610b5ee0d95e751280567100509eb11517efa", "status": "affected", "versionType": "git"}, {"version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", "lessThan": "5117c9ff4c2ebae0f5c2c262d42a25a8fbc086e6", "status": "affected", "versionType": "git"}, {"version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", "lessThan": "df6e00b1a53c57dca82c63b5ecbcad5452231bc7", "status": "affected", "versionType": "git"}, {"version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", "lessThan": "080665e2c3cbfc68359b9a348a3546ed9b908e7a", "status": "affected", "versionType": "git"}, {"version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", "lessThan": "5687958bf18f84384d809f521210d0f5deed03b0", "status": "affected", "versionType": "git"}, {"version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", "lessThan": "40b4ba0030e0b02cbacd424ebb9f4c8b0976c786", "status": "affected", "versionType": "git"}, {"version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", "lessThan": "ab552fcb17cc9e4afe0e4ac4df95fc7b30e8490a", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["block/bfq-iosched.c"], "versions": [{"version": "4.12", "status": "affected"}, {"version": "0", "lessThan": "4.12", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.238", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.189", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.110", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.33", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.16.19", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.2", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "4.19.238"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.4.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.10.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.15.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.16.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.17.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.18"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/74e610b5ee0d95e751280567100509eb11517efa"}, {"url": "https://git.kernel.org/stable/c/5117c9ff4c2ebae0f5c2c262d42a25a8fbc086e6"}, {"url": "https://git.kernel.org/stable/c/df6e00b1a53c57dca82c63b5ecbcad5452231bc7"}, {"url": "https://git.kernel.org/stable/c/080665e2c3cbfc68359b9a348a3546ed9b908e7a"}, {"url": "https://git.kernel.org/stable/c/5687958bf18f84384d809f521210d0f5deed03b0"}, {"url": "https://git.kernel.org/stable/c/40b4ba0030e0b02cbacd424ebb9f4c8b0976c786"}, {"url": "https://git.kernel.org/stable/c/ab552fcb17cc9e4afe0e4ac4df95fc7b30e8490a"}], "title": "bfq: fix use-after-free in bfq_dispatch_request", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2022-49176", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-02-27T18:17:06.859094Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-27T18:22:34.604Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2022-49176", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-02-27T18:17:06.859094Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-27T18:17:08.059Z"}}], "cna": {"title": "bfq: fix use-after-free in bfq_dispatch_request", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", "lessThan": "74e610b5ee0d95e751280567100509eb11517efa", "versionType": "git"}, {"status": "affected", "version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", "lessThan": "5117c9ff4c2ebae0f5c2c262d42a25a8fbc086e6", "versionType": "git"}, {"status": "affected", "version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", "lessThan": "df6e00b1a53c57dca82c63b5ecbcad5452231bc7", "versionType": "git"}, {"status": "affected", "version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", "lessThan": "080665e2c3cbfc68359b9a348a3546ed9b908e7a", "versionType": "git"}, {"status": "affected", "version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", "lessThan": "5687958bf18f84384d809f521210d0f5deed03b0", "versionType": "git"}, {"status": "affected", "version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", "lessThan": "40b4ba0030e0b02cbacd424ebb9f4c8b0976c786", "versionType": "git"}, {"status": "affected", "version": "aee69d78dec0ffdf82e35d57c626e80dddc314d5", "lessThan": "ab552fcb17cc9e4afe0e4ac4df95fc7b30e8490a", "versionType": "git"}], "programFiles": ["block/bfq-iosched.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.12"}, {"status": "unaffected", "version": "0", "lessThan": "4.12", "versionType": "semver"}, {"status": "unaffected", "version": "4.19.238", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.189", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.110", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.33", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "5.16.19", "versionType": "semver", "lessThanOrEqual": "5.16.*"}, {"status": "unaffected", "version": "5.17.2", "versionType": "semver", "lessThanOrEqual": "5.17.*"}, {"status": "unaffected", "version": "5.18", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["block/bfq-iosched.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/74e610b5ee0d95e751280567100509eb11517efa"}, {"url": "https://git.kernel.org/stable/c/5117c9ff4c2ebae0f5c2c262d42a25a8fbc086e6"}, {"url": "https://git.kernel.org/stable/c/df6e00b1a53c57dca82c63b5ecbcad5452231bc7"}, {"url": "https://git.kernel.org/stable/c/080665e2c3cbfc68359b9a348a3546ed9b908e7a"}, {"url": "https://git.kernel.org/stable/c/5687958bf18f84384d809f521210d0f5deed03b0"}, {"url": "https://git.kernel.org/stable/c/40b4ba0030e0b02cbacd424ebb9f4c8b0976c786"}, {"url": "https://git.kernel.org/stable/c/ab552fcb17cc9e4afe0e4ac4df95fc7b30e8490a"}], "x_generator": {"engine": "bippy-5f407fcff5a0"}, "descriptions": [{"lang": "en", "value": "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---"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-03-26T17:44:56.543Z"}}}, "cveMetadata": {"cveId": "CVE-2022-49176", "state": "PUBLISHED", "dateUpdated": "2025-03-26T17:44:56.543Z", "dateReserved": "2025-02-26T01:49:39.280Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-02-26T01:55:30.586Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E0B62342-F287-4C6B-92AA-C1BC61DDAFFA", "versionEndExcluding": "4.19.238", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8CB6E8F5-C2B1-46F3-A807-0F6104AC340F", "versionEndExcluding": "5.4.189", "versionStartIncluding": "4.20", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "91D3BFD0-D3F3-4018-957C-96CCBF357D79", "versionEndExcluding": "5.10.110", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "27C42AE8-B387-43E2-938A-E1C8B40BE6D5", "versionEndExcluding": "5.15.33", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "20C43679-0439-405A-B97F-685BEE50613B", "versionEndExcluding": "5.16.19", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "210C679C-CF84-44A3-8939-E629C87E54BF", "versionEndExcluding": "5.17.2", "versionStartIncluding": "5.17", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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---"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bfq: se corrige el use-after-free en bfq_dispatch_request KASAN informa un informe de use-after-free al realizar una prueba scsi-mq normal [69832.239032] ======================================================================== [69832.241810] ERROR: KASAN: use-after-free en bfq_dispatch_request+0x1045/0x44b0 [69832.243267] Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff88802622ba88 por la tarea kworker/3:1H/155 [69832.244656] [69832.245007] CPU: 3 PID: 155 Comm: kworker/3:1H No contaminado 5.10.0-10295-g576c6382529e #8 [69832.246626] Nombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 01/04/2014 [69832.249069] Cola de trabajo: kblockd blk_mq_run_work_fn [69832.250022] Seguimiento de llamadas: [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] Asignado por la tarea 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 ---truncado---"}], "id": "CVE-2022-49176", "lastModified": "2025-03-25T16:11:10.930", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2025-02-26T07:00:54.717", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/080665e2c3cbfc68359b9a348a3546ed9b908e7a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/40b4ba0030e0b02cbacd424ebb9f4c8b0976c786"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5117c9ff4c2ebae0f5c2c262d42a25a8fbc086e6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5687958bf18f84384d809f521210d0f5deed03b0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/74e610b5ee0d95e751280567100509eb11517efa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ab552fcb17cc9e4afe0e4ac4df95fc7b30e8490a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/df6e00b1a53c57dca82c63b5ecbcad5452231bc7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: bfq: fix use-after-free in bfq_dispatch_request", "id": "2348006", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348006"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbfq: fix use-after-free in bfq_dispatch_request\nKASAN reports a use-after-free report when doing normal scsi-mq test\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---"], "name": "CVE-2022-49176", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49176\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49176\nhttps://lore.kernel.org/linux-cve-announce/2025022613-CVE-2022-49176-fd92@gregkh/T"], "threat_severity": "Moderate"}

{}