Description · from the CVE record
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
ProductAffectedFixed inSource
Linuxdcbc919a5dc8c2629684a113a90c0b6fe10c3462 – < 36a79759a288961b1ff28a68ec2d1f56f684809836a79759a288961b1ff28a68ec2d1f56f6848098CNA
Linuxdcbc919a5dc8c2629684a113a90c0b6fe10c3462 – < 3f2575bb7f955d42569d96c3e04fa958a0dcf4b43f2575bb7f955d42569d96c3e04fa958a0dcf4b4CNA
Linuxdcbc919a5dc8c2629684a113a90c0b6fe10c3462 – < 8713bbc4b2b9ad78f803978e54b7e49dd21bd9be8713bbc4b2b9ad78f803978e54b7e49dd21bd9beCNA
Linuxdcbc919a5dc8c2629684a113a90c0b6fe10c3462 – < 0d2dd7e6bb74fd7712aa73457a4a821906c6863a0d2dd7e6bb74fd7712aa73457a4a821906c6863aCNA
Linuxdcbc919a5dc8c2629684a113a90c0b6fe10c3462 – < e7187f33c02488697ec0d01d82bf7a3f8deaba8fe7187f33c02488697ec0d01d82bf7a3f8deaba8fCNA
Linuxdcbc919a5dc8c2629684a113a90c0b6fe10c3462 – < 48df98d12b15360cd56af5c1f460307b340c119748df98d12b15360cd56af5c1f460307b340c1197CNA
Linuxdcbc919a5dc8c2629684a113a90c0b6fe10c3462 – < ee933694645dac062d65fc2743f92bc06fa0db6bee933694645dac062d65fc2743f92bc06fa0db6bCNA
Linuxdcbc919a5dc8c2629684a113a90c0b6fe10c3462 – < 35d0ed82d03e5ee77ea4f31f20e29562a772164935d0ed82d03e5ee77ea4f31f20e29562a7721649CNA
Linux5.35.10.258CNA
by Kastro