CVE-2022-49747
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49747
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49747.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49747
- Related
- Published
- 2025-03-27T17:15:39Z
- Modified
- 2025-04-01T18:00:06Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
erofs/zmap.c: Fix incorrect offset calculation
Effective offset to add to length was being incorrectly calculated, which resulted in iomap->length being set to 0, triggering a WARNON in iomapiter_done().
Fix that, and describe it in comments.
This was reported as a crash by syzbot under an issue about a warning encountered in iomapiterdone(), but unrelated to erofs.
C reproducer: https://syzkaller.appspot.com/text?tag=ReproC&x=1037a6b2880000 Kernel config: https://syzkaller.appspot.com/text?tag=KernelConfig&x=e2021a61197ebe02 Dashboard link: https://syzkaller.appspot.com/bug?extid=a8e049cd3abd342936b6
- References
Affected packages
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source