Skip to content
TrackCVE
  • Newest CVEsPage
  • Recently added to KEVPage
  • Rising exploitation (EPSS)Page
  • Weekly digestPage
  • StatisticsPage
  • WatchlistPage
  • API documentationPage
  • MCP serverPage
  • Data sourcesPage
  • ChangelogPage
  • AboutPage
  • How it's builtPage
Back

CVE-2022-50076

cifs: Fix memory leak on the deferred close

Medium5.5EPSS 0.19%
Published
Updated
Reserved
Assigned by
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix memory leak on the deferred close xfstests on smb21 report kmemleak as below: unreferenced object 0xffff8881767d6200 (size 64): comm "xfs_io", pid 1284, jiffies 4294777434 (age 20.789s) hex dump (first 32 bytes): 80 5a d0 11 81 88 ff ff 78 8a aa 63 81 88 ff ff .Z......x..c.... 00 71 99 76 81 88 ff ff 00 00 00 00 00 00 00 00 .q.v............ backtrace: [<00000000ad04e6ea>] cifs_close+0x92/0x2c0 [<0000000028b93c82>] __fput+0xff/0x3f0 [<00000000d8116851>] task_work_run+0x85/0xc0 [<0000000027e14f9e>] do_exit+0x5e5/0x1240 [<00000000fb492b95>] do_group_exit+0x58/0xe0 [<00000000129a32d9>] __x64_sys_exit_group+0x28/0x30 [<00000000e3f7d8e9>] do_syscall_64+0x35/0x80 [<00000000102e8a0b>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 When cancel the deferred close work, we should also cleanup the struct cifs_deferred_close.

Timeline

  1. ID reserved

    By Linux

  2. Published

  3. · 17 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2022-50076, by who scored it
Scored byCVSSScoreVector
NVDNVD · Analyzed3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.19% · top 91% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Weakness

Affected products

  • Linux · Linux

    • affected 9e992755be8f2d458a0bcbefd19e493483c1dba2 – < 860efae127888ae535bc4eda1b7f27642727c69e
    • affected 9e992755be8f2d458a0bcbefd19e493483c1dba2 – < 60b6d38add7b9c17d6e5d49ee8e930ea1a5650c5
    • affected 9e992755be8f2d458a0bcbefd19e493483c1dba2 – < ca08d0eac020d48a3141dbec0a3cf64fbdb17cde
    • affected 0ca6ac8a2691762307beaa4841255d1cfe6b2684
    • affected 5.13.12 – < 5.14

  • Linux · Linux

    • affected 5.14
    • unaffected < 5.14
    • unaffected 5.15.63 – ≤ 5.15.*
    • unaffected 5.19.4 – ≤ 5.19.*
    • unaffected 6.0 – ≤ *

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2022-50076 badge
[![CVE-2022-50076](https://trackcve.app/badge/CVE-2022-50076.svg)](https://trackcve.app/cve/CVE-2022-50076)

Record last updated .