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CVE PROGRAM SOURCE RECORDUnscored

CVE-2023-54056

kheaders: Use array declaration instead of char

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: kheaders: Use array declaration instead of char Under CONFIG_FORTIFY_SOURCE, memcpy() will check the size of destination and source buffers. Defining kernel_headers_data as "char" would trip this check. Since these addresses are treated as byte arrays, define them as arrays (as done everywhere else). This was seen with: $ cat /sys/kernel/kheaders.tar.xz >> /dev/null detected buffer overflow in memcpy kernel BUG at lib/string_helpers.c:1027! ... RIP: 0010:fortify_panic+0xf/0x20 [...] Call Trace: <TASK> ikheaders_read+0x45/0x50 [kheaders] kernfs_fop_read_iter+0x1a4/0x2f0 ...

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

  • 43d8ce9d65a54846d378545770991e65838981e0 to < 719459877d58c8aced5845c1e5b98d8d87d09197affected
  • 43d8ce9d65a54846d378545770991e65838981e0 to < fcd2da2e6bf2640a31a2a5b118b50dc3635c707baffected
  • 43d8ce9d65a54846d378545770991e65838981e0 to < 4a07d2d511e2703efd4387891d49e0326f1157f3affected
  • 43d8ce9d65a54846d378545770991e65838981e0 to < b9f6845a492de20679b84bda6b08be347c5819daaffected
  • 43d8ce9d65a54846d378545770991e65838981e0 to < d6d1af6b8611801b585c53c0cc63626c8d339e96affected
  • 43d8ce9d65a54846d378545770991e65838981e0 to < 82d2e01b95c439fe55fab5e04fc83387c42d3a48affected
  • 43d8ce9d65a54846d378545770991e65838981e0 to < b69edab47f1da8edd8e7bfdf8c70f51a2a5d89fbaffected

Linux Linux

Default version status: affected

  • 5.2affected
  • 0 to < 5.2unaffected
  • 5.4.243 to ≤ 5.4.*unaffected
  • 5.10.180 to ≤ 5.10.*unaffected
  • 5.15.111 to ≤ 5.15.*unaffected
  • 6.1.28 to ≤ 6.1.*unaffected
  • 6.2.15 to ≤ 6.2.*unaffected
  • 6.3.2 to ≤ 6.3.*unaffected
  • 6.4 to ≤ *unaffected

References