9.8

CVE-2022-48697: nvmet: fix a use-after-free

Modified
AliasesUBUNTU-CVE-2022-48697DEBIAN-CVE-2022-48697
Published 03-05-2024Last modified 05-08-2026

Vulnerability summary

CVE-2022-48697 is a critical (CVSS 9.8) Use After Free vulnerability in linux. EPSS estimates a 0.59% chance of exploitation in the next 30 days, higher than 48.1% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.8 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.59%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 9 · Related 9
SUSE-SU-2024:1644-1SUSE-SU-2024:1659-1SUSE-SU-2024:1663-1SUSE-SU-2024:1979-1SUSE-SU-2024:1983-1SUSE-SU-2024:2011-1

Timeline

  1. 03-05-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.59%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.59% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu100 products
  • linux< 4.15.0-204.215 | < 5.4.0-136.153 | < 5.15.0-57.63
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.15.0-1150.163 | < 5.4.0-1093.101 | < 5.15.0-1027.31
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ a07b4970f464f13640e28e16dad6cfa33647cc99, < 17f121ca3ec6be0fb32d77c7f65362934a38cc8e | ≥ a07b4970f464f13640e28e16dad6cfa33647cc99, < 8d66989b5f7bb28bba2f8e1e2ffc8bfef4a10717 | ≥ a07b4970f464f13640e28e16dad6cfa33647cc99, < be01f1c988757b95f11f090a9f491365670a522b | ≥ a07b4970f464f13640e28e16dad6cfa33647cc99, < ebf46da50beb78066674354ad650606a467e33fa | ≥ a07b4970f464f13640e28e16dad6cfa33647cc99, < 4484ce97a78171668c402e0c45db7f760aea8060 | ≥ a07b4970f464f13640e28e16dad6cfa33647cc99, < 6a02a61e81c231cc5c680c5dbf8665275147ac52 | 4.8
  • linux_kernel≥ 4.8, < 4.19.260 | ≥ 4.20, < 5.4.213 | ≥ 5.5, < 5.10.143 | ≥ 5.11, < 5.15.68 | ≥ 5.16, < 5.19.9 | 6.0:rc1 | 6.0:rc2 | 6.0:rc3 | 6.0:rc4
Debian1 product
  • linux< 5.19.11-1

3 vendors · 103 products

References

10 links