Paper/Archive/CVE-2022-48697

CVE-2022-48697

Linux Linux — nvmet: fix a use-after-free

CVSS 9.8 (CNA)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 48.1.481 × 209.6 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix a use-after-free Fix the following use-after-free complaint triggered by blktests nvme/004: BUG: KASAN: user-memory-access in blk_mq_complete_request_remote+0xac/0x350 Read of size 4 at addr 0000607bd1835943 by task kworker/13:1/460 Workqueue: nvmet-wq nvme_loop_execute_work [nvme_loop] Call Trace: show_stack+0x52/0x58 dump_stack_lvl+0x49/0x5e print_report.cold+0x36/0x1e2 kasan_report+0xb9/0xf0 __asan_load4+0x6b/0x80 blk_mq_complete_request_remote+0xac/0x350 nvme_loop_queue_response+0x1df/0x275 [nvme_loop] __nvmet_req_complete+0x132/0x4f0 [nvmet] nvmet_req_complete+0x15/0x40 [nvmet] nvmet_execute_io_connect+0x18a/0x1f0 [nvmet] nvme_loop_execute_work+0x20/0x30 [nvme_loop] process_one_work+0x56e/0xa70 worker_thread+0x2d1/0x640 kthread+0x183/0x1c0 ret_from_fork+0x1f/0x30

Affected

ProductAffectedFixed inSource

Linuxa07b4970f464f13640e28e16dad6cfa33647cc99 – < 17f121ca3ec6be0fb32d77c7f65362934a38cc8e17f121ca3ec6be0fb32d77c7f65362934a38cc8eCNA

Linuxa07b4970f464f13640e28e16dad6cfa33647cc99 – < 8d66989b5f7bb28bba2f8e1e2ffc8bfef4a107178d66989b5f7bb28bba2f8e1e2ffc8bfef4a10717CNA

Linuxa07b4970f464f13640e28e16dad6cfa33647cc99 – < be01f1c988757b95f11f090a9f491365670a522bbe01f1c988757b95f11f090a9f491365670a522bCNA

Linuxa07b4970f464f13640e28e16dad6cfa33647cc99 – < ebf46da50beb78066674354ad650606a467e33faebf46da50beb78066674354ad650606a467e33faCNA

Linuxa07b4970f464f13640e28e16dad6cfa33647cc99 – < 4484ce97a78171668c402e0c45db7f760aea80604484ce97a78171668c402e0c45db7f760aea8060CNA

Linuxa07b4970f464f13640e28e16dad6cfa33647cc99 – < 6a02a61e81c231cc5c680c5dbf8665275147ac526a02a61e81c231cc5c680c5dbf8665275147ac52CNA

Linux4.84.19.260CNA

Scores by source

Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADP5.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refgit.kernel.org/stable/c/17f121ca3ec6be0fb32d77c7f65362934a38cc8e refgit.kernel.org/stable/c/8d66989b5f7bb28bba2f8e1e2ffc8bfef4a10717 refgit.kernel.org/stable/c/be01f1c988757b95f11f090a9f491365670a522b refgit.kernel.org/stable/c/ebf46da50beb78066674354ad650606a467e33fa refgit.kernel.org/stable/c/4484ce97a78171668c402e0c45db7f760aea8060 refgit.kernel.org/stable/c/6a02a61e81c231cc5c680c5dbf8665275147ac52