Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: output extra debug info if we failed to find an inline backref [BUG] Syzbot reported several warning triggered inside lookup_inline_extent_backref(). [CAUSE] As usual, the reproducer doesn't reliably trigger locally here, but at least we know the WARN_ON() is triggered when an inline backref can not be found, and it can only be triggered when @insert is true. (I.e. inserting a new inline backref, which means the backref should already exist) [ENHANCEMENT] After the WARN_ON(), dump all the parameters and the extent tree leaf to help debug.
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
492104c866cb1b62a11393adccb477f5cd2c7768 to < 376b41524b71e494514720bd6114325b0a2ed19caffected492104c866cb1b62a11393adccb477f5cd2c7768 to < 400e08a16604b534fdd82c5a288fa150d04f5f79affected492104c866cb1b62a11393adccb477f5cd2c7768 to < 7afbfde45d665953b4d5a42a721e15bf0315d89baffected492104c866cb1b62a11393adccb477f5cd2c7768 to < b7c3cf2f6c42e6688b1c37215a0b1663f982f915affected492104c866cb1b62a11393adccb477f5cd2c7768 to < 6994f806c6d1ae8b59344d3700358547f3b3fe1daffected492104c866cb1b62a11393adccb477f5cd2c7768 to < 28062cd6eda04035d8f6ded2001292ac8b496149affected492104c866cb1b62a11393adccb477f5cd2c7768 to < e70ba449b04b40584bdabb383d10455397cbf177affected492104c866cb1b62a11393adccb477f5cd2c7768 to < 7f72f50547b7af4ddf985b07fc56600a4deba281affected
Linux Linux
Default version status: affected
3.9affected0 to < 3.9unaffected4.14.326 to ≤ 4.14.*unaffected4.19.295 to ≤ 4.19.*unaffected5.4.257 to ≤ 5.4.*unaffected5.10.197 to ≤ 5.10.*unaffected5.15.133 to ≤ 5.15.*unaffected6.1.55 to ≤ 6.1.*unaffected6.5.5 to ≤ 6.5.*unaffected6.6 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/376b41524b71e494514720bd6114325b0a2ed19c ↗
- https://git.kernel.org/stable/c/400e08a16604b534fdd82c5a288fa150d04f5f79 ↗
- https://git.kernel.org/stable/c/7afbfde45d665953b4d5a42a721e15bf0315d89b ↗
- https://git.kernel.org/stable/c/b7c3cf2f6c42e6688b1c37215a0b1663f982f915 ↗
- https://git.kernel.org/stable/c/6994f806c6d1ae8b59344d3700358547f3b3fe1d ↗
- https://git.kernel.org/stable/c/28062cd6eda04035d8f6ded2001292ac8b496149 ↗
- https://git.kernel.org/stable/c/e70ba449b04b40584bdabb383d10455397cbf177 ↗
- https://git.kernel.org/stable/c/7f72f50547b7af4ddf985b07fc56600a4deba281 ↗