CVE-2018-13093 | BDVDB-2026-103370 Detail
Description#
An issue was discovered in fs/xfs/xfs_icache.c in the Linux kernel through 4.17.3. There is a NULL pointer dereference and panic in lookup_slow() on a NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs image. This occurs because of a lack of proper validation that cached inodes are free during allocation.
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git/commit/?h=for-next&id=afca6c5b2595fc44383919fba740c194b0b76aff
- https://github.com/torvalds/linux/commit/afca6c5b2595fc44383919fba740c194b0b76aff
- https://bugzilla.kernel.org/show_bug.cgi?id=199367
- https://access.redhat.com/errata/RHSA-2019:2043
- https://access.redhat.com/errata/RHSA-2019:2029
- https://usn.ubuntu.com/4094-1/
- https://usn.ubuntu.com/4118-1/
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.