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CVE-2024-35936

btrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks()

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.19.312, 5.4.274, 5.10.215, 5.15.155, 6.1.86, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

In the Linux kernel, the following vulnerability has been resolved: btrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks() The unhandled case in btrfs_relocate_sys_chunks() loop is a corruption, as it could be caused only by two impossible conditions: • at first the search key is set up to look for a chunk tree item, with offset -1, this is an inexact search and the key->offset will contain the correct offset upon a successful search, a valid chunk tree item cannot have an offset -1 • after first successful search, the found_key corresponds to a chunk item, the offset is decremented by 1 before the next loop, it's impossible to find a chunk item there due to alignment and size constraints

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Linux Linux

    From 2b82032c34ec40515d3c45c36cd1961f37977de8 · fixed in bebd9e0ff90034875c5dfe4bd514fd7055fc7a89; From 2b82032c34ec40515d3c45c36cd1961f37977de8 · fixed in 576164bd01bd795f8b09fb194b493103506b33c9; From 2b82032c34ec40515d3c45c36cd1961f37977de8 · fixed in 87299cdaae757f3f41212146cfb5b3af416b8385; From 2b82032c34ec40515d3c45c36cd1961f37977de8 · fixed in d1ffa4ae2d591fdd40471074e79954ec45f147f7; From 2b82032c34ec40515d3c45c36cd1961f37977de8 · fixed in 36c2a2863bc3896243eb724dc3fd4cf9aea633f2; From 2b82032c34ec40515d3c45c36cd1961f37977de8 · fixed in 0d23b34c68c46cd225b55868bc8a269e3134816d; From 2b82032c34ec40515d3c45c36cd1961f37977de8 · fixed in 1f9212cdbd005bc55f2b7422e7b560d9c02bd1da; From 2b82032c34ec40515d3c45c36cd1961f37977de8 · fixed in 7411055db5ce64f836aaffd422396af0075fdc99

  • Linux Linux

    2.6.29

  • KernelLinux

    From 2.6.29 · fixed in 4.19.312; From 4.20.0 · fixed in 5.4.274; From 5.5.0 · fixed in 5.10.215; From 5.11.0 · fixed in 5.15.155; From 5.16.0 · fixed in 6.1.86; From 6.2.0 · fixed in 6.6.27; From 6.7.0 · fixed in 6.8.6

References 8

git.kernel.org