Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: freevxfs: don't BUG() on unknown typed-extent type vxfs_bmap_typed() handles four typed-extent types and calls BUG() in its default case, so an on-disk typed extent with any other type value crashes the kernel. It is reachable from ioctl(FIBMAP) on a regular file: kernel BUG at fs/freevxfs/vxfs_bmap.c:230! RIP: vxfs_bmap_typed fs/freevxfs/vxfs_bmap.c:230 [inline] vxfs_bmap1+0x128a/0x12d0 fs/freevxfs/vxfs_bmap.c:257 Replace the BUG() with WARN_ON_ONCE() and return 0 -- the value vxfs_bmap_typed() already returns on failure (and from the DEV4 case above); vxfs_getblk() maps 0 to -EIO, so the ioctl fails cleanly.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before fe40a19d571cbb584eea46038ee919d8712b2d2c; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 500e9d5bf9eff2096a21b7ac25a0a06ca46ab821; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before f1f2d54a576f0e4133b979e545abcfefd439c300; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 7ada9807e37103b41f586d34e3075e1209182b65; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 1284d687d46953fff9c0d969df108114611aca8b; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 405f13d7b270913e06e8e2b4de568985f94ef7d6; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 704d48d81dc41470e108811c32c577ada66192d4; affected 0 before 5.10.271; affected 0 before 5.15.222; affected 0 before 6.1.189; affected 0 before 6.6.158; affected 0 before 6.12.111; affected 0 before 6.18.53 |
| Linux / Linux | unaffected 5.10.271 through 5.10.*; unaffected 5.15.222 through 5.15.*; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.111 through 6.12.*; unaffected 6.18.53 through 6.18.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/fe40a19d571cbb584eea46038ee919d8712b2d2c
- https://git.kernel.org/stable/c/500e9d5bf9eff2096a21b7ac25a0a06ca46ab821
- https://git.kernel.org/stable/c/f1f2d54a576f0e4133b979e545abcfefd439c300
- https://git.kernel.org/stable/c/7ada9807e37103b41f586d34e3075e1209182b65
- https://git.kernel.org/stable/c/1284d687d46953fff9c0d969df108114611aca8b
- https://git.kernel.org/stable/c/405f13d7b270913e06e8e2b4de568985f94ef7d6
- https://git.kernel.org/stable/c/704d48d81dc41470e108811c32c577ada66192d4