Description
In the Linux kernel 4.19.83, there is a use-after-free (read) in the debugfs_remove function in fs/debugfs/inode.c (which is used to remove a file or directory in debugfs that was previously created with a call to another debugfs function such as debugfs_create_file). NOTE: Linux kernel developers dispute this issue as not being an issue with debugfs, instead this is an issue with misuse of debugfs within blktrace
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://bugzilla.kernel.org/show_bug.cgi?id=205713 ↗
- https://security.netapp.com/advisory/ntap-20200103-0001/ ↗
- https://lore.kernel.org/linux-block/20200402000002.7442-1-mcgrof%40kernel.org/ ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html ↗
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html ↗