block: Fix iterating over an empty bio with bio_for_each_folio_all
In the Linux kernel, the following vulnerability has been resolved: block: Fix iterating over an empty bio with bio_for_each_folio_all If the bio contains no data, bio_first_folio() calls page_folio() on a NULL pointer and oopses. Move the test that we've reached the end of the bio from bio_next_folio() to bio_first_folio(). [axboe: add unlikely() to error case]
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: block: Fix iterating over an empty bio with bio_for_each_folio_all If the bio contains no data, bio_first_folio() calls page_folio() on a NULL pointer and oopses. Move the test that we've reached the end of the bio from bio_next_folio() to bio_first_folio(). [axboe: add unlikely() to error case]
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/7bed6f3d08b7af27b7015da8dc3acf2b9c1f21d7
- https://git.kernel.org/stable/c/a6bd8182137a12d22d3f2cee463271bdcb491659
- https://git.kernel.org/stable/c/c6350b5cb78e9024c49eaee6fdb914ad2903a5fe
- https://git.kernel.org/stable/c/ca3ede3f5893e2d26d4dbdef1eec28a8487fafde
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26632.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-26632