CVE-2025-39880
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
libceph: fix invalid accesses to ceph_connection_v1_info
In the Linux kernel, the following vulnerability has been resolved: libceph: fix invalid accesses to ceph_connection_v1_info There is a place where generic code in messenger.c is reading and another place where it is writing to con->v1 union member without checking that the union member is active (i.e. msgr1 is in use). On 64-bit systems, con->v1.auth_retry overlaps with con->v2.out_iter, so such a read is almost guaranteed to return a bogus value instead of 0 when msgr2 is in use. This ends up being fairly benign because the side effect is just the invalidation of the authorizer and successive fetching of new tickets. con->v1.connect_seq overlaps with con->v2.conn_bufs and the fact that it's being written to can cause more serious consequences, but luckily it's not something that happens often.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| cd1a677cad994021b19665ed476aea63f5d54f31 | affected | git | ea12ab684f8ae8a6da11a22c78d94a79e2163096 | Unavailable | None listed |
| cd1a677cad994021b19665ed476aea63f5d54f31 | affected | git | 591ea9c30737663a471b2bb07b27ddde86b020d5 | Unavailable | None listed |
| cd1a677cad994021b19665ed476aea63f5d54f31 | affected | git | 23538cfbeed87159a5ac6c61e7a6de3d8d4486a8 | Unavailable | None listed |
| cd1a677cad994021b19665ed476aea63f5d54f31 | affected | git | 35dbbc3dbf8bccb2d77c68444f42c1e6d2d27983 | Unavailable | None listed |
| cd1a677cad994021b19665ed476aea63f5d54f31 | affected | git | 6bd8b56899be0b514945f639a89ccafb8f8dfaef | Unavailable | None listed |
| cd1a677cad994021b19665ed476aea63f5d54f31 | affected | git | cdbc9836c7afadad68f374791738f118263c5371 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.11 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.11 | Unavailable | None listed |
| 5.15.194 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.153 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.107 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.48 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.16.8 | unaffected | semver | Unavailable | 6.16.* | None listed |
| 6.17 | unaffected | original_commit_for_fix | Unavailable | * | None listed |