261 lines
13 KiB
JSON
261 lines
13 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-43054",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2026-05-01T14:12:55.980Z",
|
|
"datePublished": "2026-05-01T14:15:47.396Z",
|
|
"dateUpdated": "2026-11-06T15:32:28.903Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-05-11T22:16:49.357Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: tcm_loop: Drain commands in target_reset handler\n\ntcm_loop_target_reset() violates the SCSI EH contract: it returns SUCCESS\nwithout draining any in-flight commands. The SCSI EH documentation\n(scsi_eh.rst) requires that when a reset handler returns SUCCESS the driver\nhas made lower layers \"forget about timed out scmds\" and is ready for new\ncommands. Every other SCSI LLD (virtio_scsi, mpt3sas, ipr, scsi_debug,\nmpi3mr) enforces this by draining or completing outstanding commands before\nreturning SUCCESS.\n\nBecause tcm_loop_target_reset() doesn't drain, the SCSI EH reuses in-flight\nscsi_cmnd structures for recovery commands (e.g. TUR) while the target core\nstill has async completion work queued for the old se_cmd. The memset in\nqueuecommand zeroes se_lun and lun_ref_active, causing\ntransport_lun_remove_cmd() to skip its percpu_ref_put(). The leaked LUN\nreference prevents transport_clear_lun_ref() from completing, hanging\nconfigfs LUN unlink forever in D-state:\n\n INFO: task rm:264 blocked for more than 122 seconds.\n rm D 0 264 258 0x00004000\n Call Trace:\n __schedule+0x3d0/0x8e0\n schedule+0x36/0xf0\n transport_clear_lun_ref+0x78/0x90 [target_core_mod]\n core_tpg_remove_lun+0x28/0xb0 [target_core_mod]\n target_fabric_port_unlink+0x50/0x60 [target_core_mod]\n configfs_unlink+0x156/0x1f0 [configfs]\n vfs_unlink+0x109/0x290\n do_unlinkat+0x1d5/0x2d0\n\nFix this by making tcm_loop_target_reset() actually drain commands:\n\n 1. Issue TMR_LUN_RESET via tcm_loop_issue_tmr() to drain all commands that\n the target core knows about (those not yet CMD_T_COMPLETE).\n\n 2. Use blk_mq_tagset_busy_iter() to iterate all started requests and\n flush_work() on each se_cmd — this drains any deferred completion work\n for commands that already had CMD_T_COMPLETE set before the TMR (which\n the TMR skips via __target_check_io_state()). This is the same pattern\n used by mpi3mr, scsi_debug, and libsas to drain outstanding commands\n during reset."
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/target/loopback/tcm_loop.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "e0eb5d38b732b011cd9ed5b1bf9f59b83c2500d3",
|
|
"lessThan": "757c43c692294cdfad31390accc0e90429b2ef8a",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "e0eb5d38b732b011cd9ed5b1bf9f59b83c2500d3",
|
|
"lessThan": "103f79e4949513247d763c6e7f3cbbf62017afdf",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "e0eb5d38b732b011cd9ed5b1bf9f59b83c2500d3",
|
|
"lessThan": "15f5241d5a52364a7e7867b49128b0442dbcad9d",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "e0eb5d38b732b011cd9ed5b1bf9f59b83c2500d3",
|
|
"lessThan": "7cbd69aaa507b1245240a28022bf5da0f07c68d9",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "e0eb5d38b732b011cd9ed5b1bf9f59b83c2500d3",
|
|
"lessThan": "a836054ea81014117ec6b73529a21626a9e1f829",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "e0eb5d38b732b011cd9ed5b1bf9f59b83c2500d3",
|
|
"lessThan": "05ac3754467363558a0a54ae4bb7c89b2c9574cf",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "e0eb5d38b732b011cd9ed5b1bf9f59b83c2500d3",
|
|
"lessThan": "1333eee56cdf3f0cf67c6ab4114c2c9e0a952026",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/target/loopback/tcm_loop.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "5.13",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "5.13",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.203",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.168",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.134",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.12.81",
|
|
"lessThanOrEqual": "6.12.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.18.22",
|
|
"lessThanOrEqual": "6.18.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.19.12",
|
|
"lessThanOrEqual": "6.19.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.0",
|
|
"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": "5.13",
|
|
"versionEndExcluding": "5.15.203"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.13",
|
|
"versionEndExcluding": "6.1.168"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.13",
|
|
"versionEndExcluding": "6.6.134"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.13",
|
|
"versionEndExcluding": "6.12.81"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.13",
|
|
"versionEndExcluding": "6.18.22"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.13",
|
|
"versionEndExcluding": "6.19.12"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.13",
|
|
"versionEndExcluding": "7.0"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/757c43c692294cdfad31390accc0e90429b2ef8a"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/103f79e4949513247d763c6e7f3cbbf62017afdf"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/15f5241d5a52364a7e7867b49128b0442dbcad9d"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/7cbd69aaa507b1245240a28022bf5da0f07c68d9"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/a836054ea81014117ec6b73529a21626a9e1f829"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/05ac3754467363558a0a54ae4bb7c89b2c9574cf"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/1333eee56cdf3f0cf67c6ab4114c2c9e0a952026"
|
|
}
|
|
],
|
|
"title": "scsi: target: tcm_loop: Drain commands in target_reset handler",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2026-43054",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2026-11-06T15:27:27.923024Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-11-06T15:32:28.903Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |