CVE-2024-26632

block: Fix iterating over an empty bio with bio_for_each_folio_all

Description

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]

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/c6350b5cb78e9024c49eaee6fdb914ad2903a5fe patch
https://git.kernel.org/stable/c/a6bd8182137a12d22d3f2cee463271bdcb491659 patch
https://git.kernel.org/stable/c/ca3ede3f5893e2d26d4dbdef1eec28a8487fafde patch
https://git.kernel.org/stable/c/7bed6f3d08b7af27b7015da8dc3acf2b9c1f21d7 patch

Frequently Asked Questions

What is the severity of CVE-2024-26632?
CVE-2024-26632 has been scored as a medium severity vulnerability.
How to fix CVE-2024-26632?
To fix CVE-2024-26632, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-26632 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-26632 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-26632?
CVE-2024-26632 affects Linux Linux, Linux Linux.
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