Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected cd1a677cad994021b19665ed476aea63f5d54f31 before ea12ab684f8ae8a6da11a22c78d94a79e2163096; affected cd1a677cad994021b19665ed476aea63f5d54f31 before 591ea9c30737663a471b2bb07b27ddde86b020d5; affected cd1a677cad994021b19665ed476aea63f5d54f31 before 23538cfbeed87159a5ac6c61e7a6de3d8d4486a8; affected cd1a677cad994021b19665ed476aea63f5d54f31 before 35dbbc3dbf8bccb2d77c68444f42c1e6d2d27983; affected cd1a677cad994021b19665ed476aea63f5d54f31 before 6bd8b56899be0b514945f639a89ccafb8f8dfaef; affected cd1a677cad994021b19665ed476aea63f5d54f31 before cdbc9836c7afadad68f374791738f118263c5371 |
| Linux / Linux | affected 5.11; unaffected 0 before 5.11; unaffected 5.15.194 through 5.15.*; unaffected 6.1.153 through 6.1.*; unaffected 6.6.107 through 6.6.*; unaffected 6.12.48 through 6.12.*; unaffected 6.16.8 through 6.16.*; unaffected 6.17 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/ea12ab684f8ae8a6da11a22c78d94a79e2163096
- https://git.kernel.org/stable/c/591ea9c30737663a471b2bb07b27ddde86b020d5
- https://git.kernel.org/stable/c/23538cfbeed87159a5ac6c61e7a6de3d8d4486a8
- https://git.kernel.org/stable/c/35dbbc3dbf8bccb2d77c68444f42c1e6d2d27983
- https://git.kernel.org/stable/c/6bd8b56899be0b514945f639a89ccafb8f8dfaef
- https://git.kernel.org/stable/c/cdbc9836c7afadad68f374791738f118263c5371
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.