Riskcovery

CVE-2024-50285

ksmbd: check outstanding simultaneous SMB operations

State
Published
Severity
7.5 High
Published
Nov 19, 2024
Updated
Oct 30, 2026
Reserved
Oct 21, 2024

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: check outstanding simultaneous SMB operations

If Client send simultaneous SMB operations to ksmbd, It exhausts too much memory through the "ksmbd_work_cache”. It will cause OOM issue. ksmbd has a credit mechanism but it can't handle this problem. This patch add the check if it exceeds max credits to prevent this problem by assuming that one smb request consumes at least one credit.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HLinux
3.15.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCISA-ADP

Weaknesses

  • CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

ProductVersions
LinuxLinux
  • 0626e6641f6b467447c81dd7678a69c66f7746cf to before d2e2830c19824c221b6f5e17bf272438cc0e601cAffected
  • 0626e6641f6b467447c81dd7678a69c66f7746cf to before 1f993777275cbd8f74765c4f9d9285cb907c9be5Affected
  • 0626e6641f6b467447c81dd7678a69c66f7746cf to before e257ac6fe138623cf59fca8898abdf659dbc8356Affected
  • 0626e6641f6b467447c81dd7678a69c66f7746cf to before 0a77d947f599b1f39065015bec99390d0c0022eeAffected
LinuxLinux
  • 5.15Affected
  • before 5.15Not affected
  • 6.1.191 through 6.1.*Not affected
  • 6.6.61 through 6.6.*Not affected
  • 6.11.8 through 6.11.*Not affected
  • 6.12 and laterNot affected

References

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