Description
An issue was discovered in fs/nfs/dir.c in the Linux kernel before 5.16.5. If an application sets the O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a regular file is found, ENOTDIR should occur, but the server instead returns uninitialized data in the file descriptor.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://www.spinics.net/lists/stable/msg531976.html ↗
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.5 ↗
- https://github.com/torvalds/linux/commit/ac795161c93699d600db16c1a8cc23a65a1eceaf ↗
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac795161c93699d600db16c1a8cc23a65a1eceaf ↗
- https://www.debian.org/security/2022/dsa-5092 ↗
- https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html ↗
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html ↗
- https://www.debian.org/security/2022/dsa-5096 ↗
- https://lore.kernel.org/all/67d6a536-9027-1928-99b6-af512a36cd1a%40huawei.com/T/ ↗
- https://github.com/torvalds/linux/commit/ab0fc21bc7105b54bafd85bd8b82742f9e68898a ↗