CVE-2021-44879: Null Pointer Dereference
First published: Sun Feb 13 2022(Updated: )
In gc_data_segment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a move_data_page NULL pointer dereference.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <5.16.3 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.11-1 6.12.12-1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://bugzilla.kernel.org/show_bug.cgi?id=215231
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.3
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9056d6489f5a41cfbb67f719d2c0ce61ead72d9f
- https://lore.kernel.org/linux-f2fs-devel/20211206144421.3735-3-chao@kernel.org/T/
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
- https://lore.kernel.org/linux-f2fs-devel/20211206144421.3735-3-chao%40kernel.org/T/
- https://launchpad.net/bugs/cve/CVE-2021-44879
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44879
- https://nvd.nist.gov/vuln/detail/CVE-2021-44879
- https://security-tracker.debian.org/tracker/CVE-2021-44879
- https://ubuntu.com/security/CVE-2021-44879
- https://www.openwall.com/lists/oss-security/2022/02/12/1
- https://git.kernel.org/linus/9056d6489f5a41cfbb67f719d2c0ce61ead72d9f
- agent/type
- agent/author
- agent/severity
- collector/launchpad-cve
- source/Launchpad
- agent/weakness
- collector/mitre-cve
- source/MITRE
- agent/first-publish-date
- collector/usn-cve
- source/Ubuntu
- agent/references
- agent/last-modified-date
- agent/remedy
- agent/description
- agent/event
- agent/trending
- agent/source
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-cve
- collector/nvd-index
- agent/softwarecombine
- agent/tags
- collector/security-tracker-debian
- source/Debian
- vendor/linux
- canonical/linux kernel
- package-manager/debian