CVEvulnerability
CVE-2026-90318
- Status
- Received
- Published
- 2026-09-17
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
fat: release buffer head after rebuilding parent
fat_scan_logstart() leaves the matching directory entry's buffer head in
sinfo.bh for the caller to release, just like fat_scan().
fat_rebuild_parent() uses the directory entry to rebuild the parent inode
for the nostale_ro NFS export path, but does not release sinfo.bh after a
successful scan. Release it once fat_build_inode() has consumed the
directory entry data.
References
- https://git.kernel.org/stable/c/0f18d712ba9c980e05b7e33a27cde4fe3ed2d393 git.kernel.org
- https://git.kernel.org/stable/c/571ea4263d69df1b48578e4314a828ecd0604755 git.kernel.org
- https://git.kernel.org/stable/c/5e44b6944e11fd6647f028219ad0be4e85e9acee git.kernel.org
- https://git.kernel.org/stable/c/7565e44507634514e3e1899d3acad3de43f7a2c1 git.kernel.org
- https://git.kernel.org/stable/c/83e98dbf19ab64e8528e101e20f8d50e1aaa68a8 git.kernel.org
- https://git.kernel.org/stable/c/c6a67aa438179cad40f8ae45469e304338d65c0a git.kernel.org
- https://git.kernel.org/stable/c/d2a86329152c69a6200c15b2bf618755f8563826 git.kernel.org
- https://git.kernel.org/stable/c/e38587d98d1ceac608420052c0cdd901d25878f3 git.kernel.org