cve-2022-48771
Vulnerability from cvelistv5
Published
2024-06-20 11:13
Modified
2024-12-19 08:07
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0008a0c78fc33a84e2212a7c04e6b21a36ca6f4dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1d833b27fb708d6fdf5de9f6b3a8be4bd4321565Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6066977961fc6f437bc064f628cf9b0e4571c56cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/84b1259fe36ae0915f3d6ddcea6377779de48b82Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a0f90c8815706981c483a652a6aefca51a5e191cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ae2b20f27732fe92055d9e7b350abc5cdf3e2414Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e8d092a62449dcfc73517ca43963d2b8f44d0516Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0008a0c78fc33a84e2212a7c04e6b21a36ca6f4dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1d833b27fb708d6fdf5de9f6b3a8be4bd4321565Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6066977961fc6f437bc064f628cf9b0e4571c56cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/84b1259fe36ae0915f3d6ddcea6377779de48b82Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a0f90c8815706981c483a652a6aefca51a5e191cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ae2b20f27732fe92055d9e7b350abc5cdf3e2414Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e8d092a62449dcfc73517ca43963d2b8f44d0516Patch
Impacted products
Vendor Product Version
Linux Linux Version: c906965dee22d5e95d0651759ba107b420212a9f
Version: c906965dee22d5e95d0651759ba107b420212a9f
Version: c906965dee22d5e95d0651759ba107b420212a9f
Version: c906965dee22d5e95d0651759ba107b420212a9f
Version: c906965dee22d5e95d0651759ba107b420212a9f
Version: c906965dee22d5e95d0651759ba107b420212a9f
Version: c906965dee22d5e95d0651759ba107b420212a9f
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   Linux Linux Version: 4.14
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    }
  }
}


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