CVE-2026-52958
critical · 9.1In 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).
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Weaknesses
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| linux | linux_kernel | >= 5.3, < 5.10.258 |
| linux | linux_kernel | >= 5.11, < 5.15.209 |
| linux | linux_kernel | >= 5.16, < 6.1.175 |
| linux | linux_kernel | >= 6.2, < 6.6.141 |
| linux | linux_kernel | >= 6.7, < 6.12.91 |
| linux | linux_kernel | >= 6.13, < 6.18.33 |
| linux | linux_kernel | >= 6.19, < 7.0.10 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
Check a specific version with /api/v1/cve/match.
References
- https://git.kernel.org/stable/c/0d2dd7e6bb74fd7712aa73457a4a821906c6863a
- https://git.kernel.org/stable/c/35d0ed82d03e5ee77ea4f31f20e29562a7721649
- https://git.kernel.org/stable/c/36a79759a288961b1ff28a68ec2d1f56f6848098
- https://git.kernel.org/stable/c/3f2575bb7f955d42569d96c3e04fa958a0dcf4b4
- https://git.kernel.org/stable/c/48df98d12b15360cd56af5c1f460307b340c1197
- https://git.kernel.org/stable/c/8713bbc4b2b9ad78f803978e54b7e49dd21bd9be
- https://git.kernel.org/stable/c/e7187f33c02488697ec0d01d82bf7a3f8deaba8f
- https://git.kernel.org/stable/c/ee933694645dac062d65fc2743f92bc06fa0db6b
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-52958