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CVE PROGRAM SOURCE RECORDUnscored

CVE-2023-52464

EDAC/thunderx: Fix possible out-of-bounds string access

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: EDAC/thunderx: Fix possible out-of-bounds string access Enabling -Wstringop-overflow globally exposes a warning for a common bug in the usage of strncat(): drivers/edac/thunderx_edac.c: In function 'thunderx_ocx_com_threaded_isr': drivers/edac/thunderx_edac.c:1136:17: error: 'strncat' specified bound 1024 equals destination size [-Werror=stringop-overflow=] 1136 | strncat(msg, other, OCX_MESSAGE_SIZE); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ... 1145 | strncat(msg, other, OCX_MESSAGE_SIZE); ... 1150 | strncat(msg, other, OCX_MESSAGE_SIZE); ... Apparently the author of this driver expected strncat() to behave the way that strlcat() does, which uses the size of the destination buffer as its third argument rather than the length of the source buffer. The result is that there is no check on the size of the allocated buffer. Change it to strlcat(). [ bp: Trim compiler output, fixup commit message. ]

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

  • 41003396f932d7f027725c7acebb6a7caa41dc3e to < 71c17ee02538802ceafc830f0736aa35b564e601affected
  • 41003396f932d7f027725c7acebb6a7caa41dc3e to < 5da3b6e7196f0b4f3728e4e25eb20233a9ddfaf6affected
  • 41003396f932d7f027725c7acebb6a7caa41dc3e to < 6aa7865ba7ff7f0ede0035180fb3b9400ceb405aaffected
  • 41003396f932d7f027725c7acebb6a7caa41dc3e to < 700cf4bead80fac994dcc43ae1ca5d86d8959b21affected
  • 41003396f932d7f027725c7acebb6a7caa41dc3e to < 9dbac9fdae6e3b411fc4c3fca3bf48f70609c398affected
  • 41003396f932d7f027725c7acebb6a7caa41dc3e to < e1c86511241588efffaa49556196f09a498d5057affected
  • 41003396f932d7f027725c7acebb6a7caa41dc3e to < 426fae93c01dffa379225eb2bd4d3cdc42c6eec5affected
  • 41003396f932d7f027725c7acebb6a7caa41dc3e to < 475c58e1a471e9b873e3e39958c64a2d278275c8affected

Linux Linux

Default version status: affected

  • 4.12affected
  • 0 to < 4.12unaffected
  • 4.19.306 to ≤ 4.19.*unaffected
  • 5.4.268 to ≤ 5.4.*unaffected
  • 5.10.209 to ≤ 5.10.*unaffected
  • 5.15.148 to ≤ 5.15.*unaffected
  • 6.1.75 to ≤ 6.1.*unaffected
  • 6.6.14 to ≤ 6.6.*unaffected
  • 6.7.2 to ≤ 6.7.*unaffected
  • 6.8 to ≤ *unaffected

References