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CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2025-21898

ftrace: Avoid potential division by zero in function_stat_show()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: ftrace: Avoid potential division by zero in function_stat_show() Check whether denominator expression x * (x - 1) * 1000 mod {2^32, 2^64} produce zero and skip stddev computation in that case. For now don't care about rec->counter * rec->counter overflow because rec->time * rec->time overflow will likely happen earlier.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • f0629ee3922f10112584b1898491fecc74d98b3b to < 5b3d32f607f0478b414b16516cf27f9170cf66c8affected
  • e31f7939c1c27faa5d0e3f14519eaf7c89e8a69d to < ca381f60a3bb7cfaa618d73ca411610bd7fc3149affected
  • e31f7939c1c27faa5d0e3f14519eaf7c89e8a69d to < 3d738b53ed6cddb68e68c9874520a4bf846163b5affected
  • e31f7939c1c27faa5d0e3f14519eaf7c89e8a69d to < 992775227843c9376773784b8b362add44592ad7affected
  • e31f7939c1c27faa5d0e3f14519eaf7c89e8a69d to < f58a3f8e284d0bdf94164a8e61cd4e70d337a1a3affected
  • e31f7939c1c27faa5d0e3f14519eaf7c89e8a69d to < 746cc474a95473591853927b3a9792a2d671155baffected
  • e31f7939c1c27faa5d0e3f14519eaf7c89e8a69d to < 9cdac46fa7e854e587eb5f393fe491b6d7a9bdf6affected
  • e31f7939c1c27faa5d0e3f14519eaf7c89e8a69d to < a1a7eb89ca0b89dc1c326eeee2596f263291aca3affected
  • c59e74104cfd7df3ca0b5f59f1baee9c8c28b9efaffected
  • 015f0fd0fcc338513f80044add27fa46cf71d217affected
  • 1a2985af2a20b816a5cc41a2ddc1c4109ef6b9c6affected
  • 7650b4b1df091815bbbbb837d308dd4154684f8aaffected
  • 010a7e846d4beaf34384c40ff18d5de10106d9b4affected
  • 5.4.9 to < 5.4.291affected
  • 3.16.83 to < 3.17affected
  • 4.4.209 to < 4.5affected
  • 4.9.209 to < 4.10affected
  • 4.14.163 to < 4.15affected
  • 4.19.94 to < 4.20affected

Linux Linux

Default version status: affected

  • 5.5affected
  • 0 to < 5.5unaffected
  • 5.4.291 to ≤ 5.4.*unaffected
  • 5.10.235 to ≤ 5.10.*unaffected
  • 5.15.179 to ≤ 5.15.*unaffected
  • 6.1.130 to ≤ 6.1.*unaffected
  • 6.6.81 to ≤ 6.6.*unaffected
  • 6.12.18 to ≤ 6.12.*unaffected
  • 6.13.6 to ≤ 6.13.*unaffected
  • 6.14 to ≤ *unaffected

References