Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: bpf: Add missing access_ok call to copy_user_syms As reported by sashiko we use __get_user without prior access_ok call on the user space pointer. Adding the missing call for the whole pointer array. Plus removing the err check in the error path, because it's not needed and also we can return -ENOMEM directly from the first kvmalloc_array fail path. [1] https://lore.kernel.org/bpf/20260611115503.AC16D1F00893@smtp.kernel.org/
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec before a67f7f9647cb243b3be32163e88e5bc76e3d51e9; affected 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec before 8b719cef5ac30ab83ce5693c5faf10e4944874af; affected 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec before 128391b57e0977c35243672a6f970073651f3831; affected 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec before 0b6252afcd1965f77c6a6f8a802a2e1381822b98; affected 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec before 28ce7bcf8a29aa395b60764df4c97be745de89d0; affected 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec before d5dc200c3a3f217de072af269dd90adddf90e48d |
| Linux / Linux | affected 5.19; unaffected 0 before 5.19; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/a67f7f9647cb243b3be32163e88e5bc76e3d51e9
- https://git.kernel.org/stable/c/8b719cef5ac30ab83ce5693c5faf10e4944874af
- https://git.kernel.org/stable/c/128391b57e0977c35243672a6f970073651f3831
- https://git.kernel.org/stable/c/0b6252afcd1965f77c6a6f8a802a2e1381822b98
- https://git.kernel.org/stable/c/28ce7bcf8a29aa395b60764df4c97be745de89d0
- https://git.kernel.org/stable/c/d5dc200c3a3f217de072af269dd90adddf90e48d