Description
In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds access in osdmap_decode() When decoding osd_state and osd_weight from an incoming osdmap in osdmap_decode(), both are decoded for each osd, i.e., map->max_osd times. The ceph_decode_need() check only accounts for sizeof(*map->osd_weight) once. This can potentially result in an out-of-bounds memory access if the incoming message is corrupted such that the max_osd value exceeds the actual content of the osdmap message. This patch fixes the issue by changing the corresponding part in the ceph_decode_need() check to account for map->max_osd*sizeof(*map->osd_weight).
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
dcbc919a5dc8c2629684a113a90c0b6fe10c3462 to < 36a79759a288961b1ff28a68ec2d1f56f6848098affecteddcbc919a5dc8c2629684a113a90c0b6fe10c3462 to < 3f2575bb7f955d42569d96c3e04fa958a0dcf4b4affecteddcbc919a5dc8c2629684a113a90c0b6fe10c3462 to < 8713bbc4b2b9ad78f803978e54b7e49dd21bd9beaffecteddcbc919a5dc8c2629684a113a90c0b6fe10c3462 to < 0d2dd7e6bb74fd7712aa73457a4a821906c6863aaffecteddcbc919a5dc8c2629684a113a90c0b6fe10c3462 to < e7187f33c02488697ec0d01d82bf7a3f8deaba8faffecteddcbc919a5dc8c2629684a113a90c0b6fe10c3462 to < 48df98d12b15360cd56af5c1f460307b340c1197affecteddcbc919a5dc8c2629684a113a90c0b6fe10c3462 to < ee933694645dac062d65fc2743f92bc06fa0db6baffecteddcbc919a5dc8c2629684a113a90c0b6fe10c3462 to < 35d0ed82d03e5ee77ea4f31f20e29562a7721649affected
Linux Linux
Default version status: affected
5.3affected0 to < 5.3unaffected5.10.258 to ≤ 5.10.*unaffected5.15.209 to ≤ 5.15.*unaffected6.1.175 to ≤ 6.1.*unaffected6.6.141 to ≤ 6.6.*unaffected6.12.91 to ≤ 6.12.*unaffected6.18.33 to ≤ 6.18.*unaffected7.0.10 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/36a79759a288961b1ff28a68ec2d1f56f6848098 ↗
- https://git.kernel.org/stable/c/3f2575bb7f955d42569d96c3e04fa958a0dcf4b4 ↗
- https://git.kernel.org/stable/c/8713bbc4b2b9ad78f803978e54b7e49dd21bd9be ↗
- https://git.kernel.org/stable/c/0d2dd7e6bb74fd7712aa73457a4a821906c6863a ↗
- https://git.kernel.org/stable/c/e7187f33c02488697ec0d01d82bf7a3f8deaba8f ↗
- https://git.kernel.org/stable/c/48df98d12b15360cd56af5c1f460307b340c1197 ↗
- https://git.kernel.org/stable/c/ee933694645dac062d65fc2743f92bc06fa0db6b ↗
- https://git.kernel.org/stable/c/35d0ed82d03e5ee77ea4f31f20e29562a7721649 ↗