Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: net: rose: convert 'use' field to refcount_t The 'use' field in struct rose_neigh is used as a reference counter but lacks atomicity. This can lead to race conditions where a rose_neigh structure is freed while still being referenced by other code paths. For example, when rose_neigh->use becomes zero during an ioctl operation via rose_rt_ioctl(), the structure may be removed while its timer is still active, potentially causing use-after-free issues. This patch changes the type of 'use' from unsigned short to refcount_t and updates all code paths to use rose_neigh_hold() and rose_neigh_put() which operate reference counts atomically.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before fb07156cc0742ba4e93dfcc84280c011d05b301f; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before f8c29fc437d03a98fb075c31c5be761cc8326284; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 0085b250fcc79f900c82a69980ec2f3e1871823b; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 203e4f42596ede31498744018716a3db6dbb7f51; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before d860d1faa6b2ce3becfdb8b0c2b048ad31800061 |
| Linux / Linux | affected 2.6.12; unaffected 0 before 2.6.12; unaffected 6.1.150 through 6.1.*; unaffected 6.6.104 through 6.6.*; unaffected 6.12.45 through 6.12.*; unaffected 6.16.5 through 6.16.*; unaffected 6.17 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/fb07156cc0742ba4e93dfcc84280c011d05b301f
- https://git.kernel.org/stable/c/f8c29fc437d03a98fb075c31c5be761cc8326284
- https://git.kernel.org/stable/c/0085b250fcc79f900c82a69980ec2f3e1871823b
- https://git.kernel.org/stable/c/203e4f42596ede31498744018716a3db6dbb7f51
- https://git.kernel.org/stable/c/d860d1faa6b2ce3becfdb8b0c2b048ad31800061
ADP enrichment
No English description supplied.
No English description supplied.