CVE-2026-43262
gfs2: fiemap page fault fix
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: gfs2: fiemap page fault fix In gfs2_fiemap(), we are calling iomap_fiemap() while holding the inode glock. This can lead to recursive glock taking if the fiemap buffer is memory mapped to the same inode and accessing it triggers a page fault. Fix by disabling page faults for iomap_fiemap() and faulting in the buffer by hand if necessary. Fixes xfstest generic/742.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.29
References 7
git.kernel.org
- stable/c/5d5d9ec957bfa1eb2b05861c19f5d701dd006db7
- stable/c/cead3bebf3e318578b8a86a5472015d713d2a8a8
- stable/c/e428670cfb2993d8c224effd076242ca6b0950de
- stable/c/5d2c4f182ea8516de8682e2b60411c03df00e3ea
- stable/c/2e121c53b581e40397ae08090a7af4ed10781fbc
- stable/c/9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab
- stable/c/e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2