Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Fix stale file descriptors on failed usercopy A failing usercopy of the fence_rep object will lead to a stale entry in the file descriptor table as put_unused_fd() won't release it. This enables userland to refer to a dangling 'file' object through that still valid file descriptor, leading to all kinds of use-after-free exploitation scenarios. Fix this by deferring the call to fd_install() until after the usercopy has succeeded.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c906965dee22d5e95d0651759ba107b420212a9f before e8d092a62449dcfc73517ca43963d2b8f44d0516; affected c906965dee22d5e95d0651759ba107b420212a9f before 0008a0c78fc33a84e2212a7c04e6b21a36ca6f4d; affected c906965dee22d5e95d0651759ba107b420212a9f before 84b1259fe36ae0915f3d6ddcea6377779de48b82; affected c906965dee22d5e95d0651759ba107b420212a9f before ae2b20f27732fe92055d9e7b350abc5cdf3e2414; affected c906965dee22d5e95d0651759ba107b420212a9f before 6066977961fc6f437bc064f628cf9b0e4571c56c; affected c906965dee22d5e95d0651759ba107b420212a9f before 1d833b27fb708d6fdf5de9f6b3a8be4bd4321565; affected c906965dee22d5e95d0651759ba107b420212a9f before a0f90c8815706981c483a652a6aefca51a5e191c |
| Linux / Linux | affected 4.14; unaffected 0 before 4.14; unaffected 4.14.264 through 4.14.*; unaffected 4.19.227 through 4.19.*; unaffected 5.4.175 through 5.4.*; unaffected 5.10.95 through 5.10.*; unaffected 5.15.18 through 5.15.*; unaffected 5.16.4 through 5.16.*; unaffected 5.17 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/e8d092a62449dcfc73517ca43963d2b8f44d0516
- https://git.kernel.org/stable/c/0008a0c78fc33a84e2212a7c04e6b21a36ca6f4d
- https://git.kernel.org/stable/c/84b1259fe36ae0915f3d6ddcea6377779de48b82
- https://git.kernel.org/stable/c/ae2b20f27732fe92055d9e7b350abc5cdf3e2414
- https://git.kernel.org/stable/c/6066977961fc6f437bc064f628cf9b0e4571c56c
- https://git.kernel.org/stable/c/1d833b27fb708d6fdf5de9f6b3a8be4bd4321565
- https://git.kernel.org/stable/c/a0f90c8815706981c483a652a6aefca51a5e191c
ADP enrichment
No English description supplied.
- https://git.kernel.org/stable/c/e8d092a62449dcfc73517ca43963d2b8f44d0516
- https://git.kernel.org/stable/c/0008a0c78fc33a84e2212a7c04e6b21a36ca6f4d
- https://git.kernel.org/stable/c/84b1259fe36ae0915f3d6ddcea6377779de48b82
- https://git.kernel.org/stable/c/ae2b20f27732fe92055d9e7b350abc5cdf3e2414
- https://git.kernel.org/stable/c/6066977961fc6f437bc064f628cf9b0e4571c56c
- https://git.kernel.org/stable/c/1d833b27fb708d6fdf5de9f6b3a8be4bd4321565
- https://git.kernel.org/stable/c/a0f90c8815706981c483a652a6aefca51a5e191c
No English description supplied.
No references supplied.