CVE-2020-29534 | BDVDB-2026-145413 Detail

Description#

An issue was discovered in the Linux kernel before 5.9.3. io_uring takes a non-refcounted reference to the files_struct of the process that submitted a request, causing execve() to incorrectly optimize unshare_fd(), aka CID-0f2122045b94.

Impact#

No impact statement in the source data.

Weaknesses#

No weakness recorded in the source data.

References#

https://bugs.chromium.org/p/project-zero/issues/detail?id=2089
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0f2122045b946241a9e549c2a76cea54fa58a7ff
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.3

Exploit#

No public exploit known

History#

Version 12020-12-03Record published in the CVE List.
Version 22024-08-04Most recent update recorded in the CVE List.