CVE-2024-26845
In the Linux kernel, the following vulnerability has been resolved: scsi: target: core: Add TMF to tmr_list handling An abort that is responded to by iSCSI itself is added to tmr_list but does not go to target core.
Does this matter?
Lower severity and a low EPSS score (0.73%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: target: core: Add TMF to tmr_list handling An abort that is responded to by iSCSI itself is added to tmr_list but does not go to target core. A LUN_RESET that goes through tmr_list takes a refcounter on the abort and waits for completion. However, the abort will be never complete because it was not started in target core. Unable to locate ITT: 0x05000000 on CID: 0 Unable to locate RefTaskTag: 0x05000000 on CID: 0. wait_for_tasks: Stopping tmf LUN_RESET with tag 0x0 ref_task_tag 0x0 i_state 34 t_state ISTATE_PROCESSING refcnt 2 transport_state active,stop,fabric_stop wait for tasks: tmf LUN_RESET with tag 0x0 ref_task_tag 0x0 i_state 34 t_state ISTATE_PROCESSING refcnt 2 transport_state active,stop,fabric_stop ... INFO: task kworker/0:2:49 blocked for more than 491 seconds. task:kworker/0:2 state:D stack: 0 pid: 49 ppid: 2 flags:0x00000800 Workqueue: events target_tmr_work [target_core_mod] Call Trace: __switch_to+0x2c4/0x470 _schedule+0x314/0x1730 schedule+0x64/0x130 schedule_timeout+0x168/0x430 wait_for_completion+0x140/0x270 target_put_cmd_and_wait+0x64/0xb0 [target_core_mod] core_tmr_lun_reset+0x30/0xa0 [target_core_mod] target_tmr_work+0xc8/0x1b0 [target_core_mod] process_one_work+0x2d4/0x5d0 worker_thread+0x78/0x6c0 To fix this, only add abort to tmr_list if it will be handled by target core.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.73% probability · 52th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel · debian/debian linux
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/11f3fe5001ed05721e641f0ecaa7a73b7deb245dPatch
- https://git.kernel.org/stable/c/168ed59170de1fd7274080fe102216162d6826cfPatch
- https://git.kernel.org/stable/c/36bc5040c863b44af06094b22f1e50059227b9cbPatch
- https://git.kernel.org/stable/c/83ab68168a3d990d5ff39ab030ad5754cbbccb25Patch
- https://git.kernel.org/stable/c/a9849b67b4402a12eb35eadc9306c1ef9847d53dPatch
- https://git.kernel.org/stable/c/bd508f96b5fef96d8a0ce9cbb211d82bcfc2341fPatch
- https://git.kernel.org/stable/c/e717bd412001495f17400bfc09f606f1b594ef5aPatch
- https://git.kernel.org/stable/c/11f3fe5001ed05721e641f0ecaa7a73b7deb245dPatch
- https://git.kernel.org/stable/c/168ed59170de1fd7274080fe102216162d6826cfPatch
- https://git.kernel.org/stable/c/36bc5040c863b44af06094b22f1e50059227b9cbPatch
- https://git.kernel.org/stable/c/425a571a7e6fc389954cf2564e1edbba3740e171Patch
- https://git.kernel.org/stable/c/83ab68168a3d990d5ff39ab030ad5754cbbccb25Patch
- https://git.kernel.org/stable/c/a9849b67b4402a12eb35eadc9306c1ef9847d53dPatch
- https://git.kernel.org/stable/c/bd508f96b5fef96d8a0ce9cbb211d82bcfc2341fPatch
- https://git.kernel.org/stable/c/e717bd412001495f17400bfc09f606f1b594ef5aPatch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlMailing List
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlMailing List
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.