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CVE-2022-49297 (GCVE-0-2022-49297)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:01 – Updated: 2026-05-11 18:56
VLAI
Title
nbd: fix io hung while disconnecting device
Summary
In the Linux kernel, the following vulnerability has been resolved: nbd: fix io hung while disconnecting device In our tests, "qemu-nbd" triggers a io hung: INFO: task qemu-nbd:11445 blocked for more than 368 seconds. Not tainted 5.18.0-rc3-next-20220422-00003-g2176915513ca #884 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:qemu-nbd state:D stack: 0 pid:11445 ppid: 1 flags:0x00000000 Call Trace: <TASK> __schedule+0x480/0x1050 ? _raw_spin_lock_irqsave+0x3e/0xb0 schedule+0x9c/0x1b0 blk_mq_freeze_queue_wait+0x9d/0xf0 ? ipi_rseq+0x70/0x70 blk_mq_freeze_queue+0x2b/0x40 nbd_add_socket+0x6b/0x270 [nbd] nbd_ioctl+0x383/0x510 [nbd] blkdev_ioctl+0x18e/0x3e0 __x64_sys_ioctl+0xac/0x120 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fd8ff706577 RSP: 002b:00007fd8fcdfebf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000040000000 RCX: 00007fd8ff706577 RDX: 000000000000000d RSI: 000000000000ab00 RDI: 000000000000000f RBP: 000000000000000f R08: 000000000000fbe8 R09: 000055fe497c62b0 R10: 00000002aff20000 R11: 0000000000000246 R12: 000000000000006d R13: 0000000000000000 R14: 00007ffe82dc5e70 R15: 00007fd8fcdff9c0 "qemu-ndb -d" will call ioctl 'NBD_DISCONNECT' first, however, following message was found: block nbd0: Send disconnect failed -32 Which indicate that something is wrong with the server. Then, "qemu-nbd -d" will call ioctl 'NBD_CLEAR_SOCK', however ioctl can't clear requests after commit 2516ab1543fd("nbd: only clear the queue on device teardown"). And in the meantime, request can't complete through timeout because nbd_xmit_timeout() will always return 'BLK_EH_RESET_TIMER', which means such request will never be completed in this situation. Now that the flag 'NBD_CMD_INFLIGHT' can make sure requests won't complete multiple times, switch back to call nbd_clear_sock() in nbd_clear_sock_ioctl(), so that inflight requests can be cleared.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2516ab1543fdd1f9d08385d73cae51f668a9f3dc , < 67e403136a0e1a55fef6a05f103a3979a39ad3fd (git)
Affected: 2516ab1543fdd1f9d08385d73cae51f668a9f3dc , < 62d227f67a8c25d5e16f40e5290607f9306d2188 (git)
Affected: 2516ab1543fdd1f9d08385d73cae51f668a9f3dc , < 69893d6d7f5c10d8306c1b5fc64b71efc91aa6cd (git)
Affected: 2516ab1543fdd1f9d08385d73cae51f668a9f3dc , < f72df77600a43e59b3189e53b47f8685739867d3 (git)
Affected: 2516ab1543fdd1f9d08385d73cae51f668a9f3dc , < c4ba982bd5084fa659ef518aaf159e4dab02ecda (git)
Affected: 2516ab1543fdd1f9d08385d73cae51f668a9f3dc , < 54b06dc2a206b4d67349bb56b92d4bd32700b7b1 (git)
Affected: 2516ab1543fdd1f9d08385d73cae51f668a9f3dc , < 141318e62db87105b0103fccc59c9c5940da248d (git)
Affected: 2516ab1543fdd1f9d08385d73cae51f668a9f3dc , < 09dadb5985023e27d4740ebd17e6fea4640110e5 (git)
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Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 4.14.283 , ≤ 4.14.* (semver)
Unaffected: 4.19.247 , ≤ 4.19.* (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.122 , ≤ 5.10.* (semver)
Unaffected: 5.15.47 , ≤ 5.15.* (semver)
Unaffected: 5.17.15 , ≤ 5.17.* (semver)
Unaffected: 5.18.4 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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{
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnbd: fix io hung while disconnecting device\n\nIn our tests, \"qemu-nbd\" triggers a io hung:\n\nINFO: task qemu-nbd:11445 blocked for more than 368 seconds.\n      Not tainted 5.18.0-rc3-next-20220422-00003-g2176915513ca #884\n\"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\ntask:qemu-nbd        state:D stack:    0 pid:11445 ppid:     1 flags:0x00000000\nCall Trace:\n \u003cTASK\u003e\n __schedule+0x480/0x1050\n ? _raw_spin_lock_irqsave+0x3e/0xb0\n schedule+0x9c/0x1b0\n blk_mq_freeze_queue_wait+0x9d/0xf0\n ? ipi_rseq+0x70/0x70\n blk_mq_freeze_queue+0x2b/0x40\n nbd_add_socket+0x6b/0x270 [nbd]\n nbd_ioctl+0x383/0x510 [nbd]\n blkdev_ioctl+0x18e/0x3e0\n __x64_sys_ioctl+0xac/0x120\n do_syscall_64+0x35/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\nRIP: 0033:0x7fd8ff706577\nRSP: 002b:00007fd8fcdfebf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010\nRAX: ffffffffffffffda RBX: 0000000040000000 RCX: 00007fd8ff706577\nRDX: 000000000000000d RSI: 000000000000ab00 RDI: 000000000000000f\nRBP: 000000000000000f R08: 000000000000fbe8 R09: 000055fe497c62b0\nR10: 00000002aff20000 R11: 0000000000000246 R12: 000000000000006d\nR13: 0000000000000000 R14: 00007ffe82dc5e70 R15: 00007fd8fcdff9c0\n\n\"qemu-ndb -d\" will call ioctl \u0027NBD_DISCONNECT\u0027 first, however, following\nmessage was found:\n\nblock nbd0: Send disconnect failed -32\n\nWhich indicate that something is wrong with the server. Then,\n\"qemu-nbd -d\" will call ioctl \u0027NBD_CLEAR_SOCK\u0027, however ioctl can\u0027t clear\nrequests after commit 2516ab1543fd(\"nbd: only clear the queue on device\nteardown\"). And in the meantime, request can\u0027t complete through timeout\nbecause nbd_xmit_timeout() will always return \u0027BLK_EH_RESET_TIMER\u0027, which\nmeans such request will never be completed in this situation.\n\nNow that the flag \u0027NBD_CMD_INFLIGHT\u0027 can make sure requests won\u0027t\ncomplete multiple times, switch back to call nbd_clear_sock() in\nnbd_clear_sock_ioctl(), so that inflight requests can be cleared."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:56:58.046Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/67e403136a0e1a55fef6a05f103a3979a39ad3fd"
        },
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          "url": "https://git.kernel.org/stable/c/62d227f67a8c25d5e16f40e5290607f9306d2188"
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          "url": "https://git.kernel.org/stable/c/69893d6d7f5c10d8306c1b5fc64b71efc91aa6cd"
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          "url": "https://git.kernel.org/stable/c/f72df77600a43e59b3189e53b47f8685739867d3"
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        },
        {
          "url": "https://git.kernel.org/stable/c/09dadb5985023e27d4740ebd17e6fea4640110e5"
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      ],
      "title": "nbd: fix io hung while disconnecting device",
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    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49297",
    "datePublished": "2025-02-26T02:01:26.628Z",
    "dateReserved": "2025-02-26T01:49:39.302Z",
    "dateUpdated": "2026-05-11T18:56:58.046Z",
    "state": "PUBLISHED"
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  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-49297",
      "date": "2026-09-16",
      "epss": "0.00284",
      "percentile": "0.21007"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49297\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:01:06.527\",\"lastModified\":\"2026-06-17T05:17:38.123\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnbd: fix io hung while disconnecting device\\n\\nIn our tests, \\\"qemu-nbd\\\" triggers a io hung:\\n\\nINFO: task qemu-nbd:11445 blocked for more than 368 seconds.\\n      Not tainted 5.18.0-rc3-next-20220422-00003-g2176915513ca #884\\n\\\"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\\\" disables this message.\\ntask:qemu-nbd        state:D stack:    0 pid:11445 ppid:     1 flags:0x00000000\\nCall Trace:\\n \u003cTASK\u003e\\n __schedule+0x480/0x1050\\n ? _raw_spin_lock_irqsave+0x3e/0xb0\\n schedule+0x9c/0x1b0\\n blk_mq_freeze_queue_wait+0x9d/0xf0\\n ? ipi_rseq+0x70/0x70\\n blk_mq_freeze_queue+0x2b/0x40\\n nbd_add_socket+0x6b/0x270 [nbd]\\n nbd_ioctl+0x383/0x510 [nbd]\\n blkdev_ioctl+0x18e/0x3e0\\n __x64_sys_ioctl+0xac/0x120\\n do_syscall_64+0x35/0x80\\n entry_SYSCALL_64_after_hwframe+0x44/0xae\\nRIP: 0033:0x7fd8ff706577\\nRSP: 002b:00007fd8fcdfebf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010\\nRAX: ffffffffffffffda RBX: 0000000040000000 RCX: 00007fd8ff706577\\nRDX: 000000000000000d RSI: 000000000000ab00 RDI: 000000000000000f\\nRBP: 000000000000000f R08: 000000000000fbe8 R09: 000055fe497c62b0\\nR10: 00000002aff20000 R11: 0000000000000246 R12: 000000000000006d\\nR13: 0000000000000000 R14: 00007ffe82dc5e70 R15: 00007fd8fcdff9c0\\n\\n\\\"qemu-ndb -d\\\" will call ioctl \u0027NBD_DISCONNECT\u0027 first, however, following\\nmessage was found:\\n\\nblock nbd0: Send disconnect failed -32\\n\\nWhich indicate that something is wrong with the server. Then,\\n\\\"qemu-nbd -d\\\" will call ioctl \u0027NBD_CLEAR_SOCK\u0027, however ioctl can\u0027t clear\\nrequests after commit 2516ab1543fd(\\\"nbd: only clear the queue on device\\nteardown\\\"). And in the meantime, request can\u0027t complete through timeout\\nbecause nbd_xmit_timeout() will always return \u0027BLK_EH_RESET_TIMER\u0027, which\\nmeans such request will never be completed in this situation.\\n\\nNow that the flag \u0027NBD_CMD_INFLIGHT\u0027 can make sure requests won\u0027t\\ncomplete multiple times, switch back to call nbd_clear_sock() in\\nnbd_clear_sock_ioctl(), so that inflight requests can be cleared.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nbd: se corrige el bloqueo de E/S al desconectar el dispositivo En nuestras pruebas, \\\"qemu-nbd\\\" activa un bloqueo de E/S: INFORMACI\u00d3N: la tarea qemu-nbd:11445 estuvo bloqueada durante m\u00e1s de 368 segundos. No contaminada 5.18.0-rc3-next-20220422-00003-g2176915513ca #884 \\\"echo 0 \u0026gt; /proc/sys/kernel/hung_task_timeout_secs\\\" deshabilita este mensaje. tarea:qemu-nbd estado:D pila: 0 pid:11445 ppid: 1 indicadores:0x00000000 Seguimiento de llamadas:   __schedule+0x480/0x1050 ? _raw_spin_lock_irqsave+0x3e/0xb0 schedule+0x9c/0x1b0 blk_mq_freeze_queue_wait+0x9d/0xf0 ? ipi_rseq+0x70/0x70 blk_mq_freeze_queue+0x2b/0x40 nbd_add_socket+0x6b/0x270 [nbd] nbd_ioctl+0x383/0x510 [nbd] blkdev_ioctl+0x18e/0x3e0 __x64_sys_ioctl+0xac/0x120 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fd8ff706577 RSP: 002b:00007fd8fcdfebf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000040000000 RCX: 00007fd8ff706577 RDX: 000000000000000d RSI: 000000000000ab00 RDI: 00000000000000f RBP: 00000000000000f R08: 000000000000fbe8 R09: 000055fe497c62b0 R10: 00000002aff20000 R11: 0000000000000246 R12: 0000000000000006d R13: 00000000000000000 R14: 00007ffe82dc5e70 R15: 00007fd8fcdff9c0 \\\"qemu-ndb -d\\\" llamar\u00e1 primero a ioctl \u0027NBD_DISCONNECT\u0027, sin embargo, se encontr\u00f3 el siguiente mensaje: block nbd0: Send desconect failed -32 Lo que indica que algo anda mal con el servidor. Luego, \\\"qemu-nbd -d\\\" llamar\u00e1 a ioctl \u0027NBD_CLEAR_SOCK\u0027, sin embargo, ioctl no puede borrar las solicitudes despu\u00e9s de el commit 2516ab1543fd(\\\"nbd: solo limpia la cola al desmantelar el dispositivo\\\"). Mientras tanto, la solicitud no se puede completar despu\u00e9s del tiempo de espera porque nbd_xmit_timeout() siempre devolver\u00e1 \u0027BLK_EH_RESET_TIMER\u0027, lo que significa que dicha solicitud nunca se completar\u00e1 en esta situaci\u00f3n. Ahora que el indicador \u0027NBD_CMD_INFLIGHT\u0027 puede garantizar que las solicitudes no se completen varias veces, vuelva a llamar a nbd_clear_sock() en nbd_clear_sock_ioctl(), de modo que las solicitudes en curso se puedan borrar.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/block/nbd.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2516ab1543fdd1f9d08385d73cae51f668a9f3dc\",\"lessThan\":\"67e403136a0e1a55fef6a05f103a3979a39ad3fd\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2516ab1543fdd1f9d08385d73cae51f668a9f3dc\",\"lessThan\":\"62d227f67a8c25d5e16f40e5290607f9306d2188\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2516ab1543fdd1f9d08385d73cae51f668a9f3dc\",\"lessThan\":\"69893d6d7f5c10d8306c1b5fc64b71efc91aa6cd\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2516ab1543fdd1f9d08385d73cae51f668a9f3dc\",\"lessThan\":\"f72df77600a43e59b3189e53b47f8685739867d3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2516ab1543fdd1f9d08385d73cae51f668a9f3dc\",\"lessThan\":\"c4ba982bd5084fa659ef518aaf159e4dab02ecda\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2516ab1543fdd1f9d08385d73cae51f668a9f3dc\",\"lessThan\":\"54b06dc2a206b4d67349bb56b92d4bd32700b7b1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2516ab1543fdd1f9d08385d73cae51f668a9f3dc\",\"lessThan\":\"141318e62db87105b0103fccc59c9c5940da248d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2516ab1543fdd1f9d08385d73cae51f668a9f3dc\",\"lessThan\":\"09dadb5985023e27d4740ebd17e6fea4640110e5\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/block/nbd.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.12\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.12\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.14.283\",\"lessThanOrEqual\":\"4.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.247\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.198\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.122\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.47\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.17.15\",\"lessThanOrEqual\":\"5.17.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.18.4\",\"lessThanOrEqual\":\"5.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.19\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.14.283\",\"matchCriteriaId\":\"42074657-A7B6-4740-88B7-67B440018C1C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.247\",\"matchCriteriaId\":\"B8CFA0F4-2D75-41F4-9753-87944A08B53B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.198\",\"matchCriteriaId\":\"3EC49633-14DE-4EBD-BB80-76AE2E3EABB9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.122\",\"matchCriteriaId\":\"1B42AA01-44D8-4572-95E6-FF8E374CF9C5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.47\",\"matchCriteriaId\":\"FC042EE3-4864-4325-BE0B-4BCDBF11AA61\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.17.15\",\"matchCriteriaId\":\"53E7AA2E-2FB4-45CA-A22B-08B4EDBB51AD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.18\",\"versionEndExcluding\":\"5.18.4\",\"matchCriteriaId\":\"FA6D643C-6D6A-4821-8A8D-B5776B8F0103\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/09dadb5985023e27d4740ebd17e6fea4640110e5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/141318e62db87105b0103fccc59c9c5940da248d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/54b06dc2a206b4d67349bb56b92d4bd32700b7b1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/62d227f67a8c25d5e16f40e5290607f9306d2188\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/67e403136a0e1a55fef6a05f103a3979a39ad3fd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/69893d6d7f5c10d8306c1b5fc64b71efc91aa6cd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c4ba982bd5084fa659ef518aaf159e4dab02ecda\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f72df77600a43e59b3189e53b47f8685739867d3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:38:33+00:00",
      "cve": "CVE-2022-49297",
      "id": "CVE-2022-49297",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "166",
      "product_status:known_affected": "84",
      "product_status:known_not_affected": "104",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: nbd: fix io hung while disconnecting device",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49297.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T01:32:25Z",
      "cve": "CVE-2022-49297",
      "id": "CVE-2022-49297",
      "initial_release_date": "2025-02-27T03:09:14Z",
      "product_status:known_affected": "453",
      "product_status:known_not_affected": "192",
      "product_status:recommended": "341",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49297",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49297.json",
      "version": "52"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.