CVE-2024-42295

nilfs2: handle inconsistent state in nilfs_btnode_create_block()

Description

In the Linux kernel, the following vulnerability has been resolved: nilfs2: handle inconsistent state in nilfs_btnode_create_block() Syzbot reported that a buffer state inconsistency was detected in nilfs_btnode_create_block(), triggering a kernel bug. It is not appropriate to treat this inconsistency as a bug; it can occur if the argument block address (the buffer index of the newly created block) is a virtual block number and has been reallocated due to corruption of the bitmap used to manage its allocation state. So, modify nilfs_btnode_create_block() and its callers to treat it as a possible filesystem error, rather than triggering a kernel bug.

N/A

CVSS

Severity:

EPSS 0.20%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/19cce46238ffe3546e44b9c74057103ff8b24c62
https://git.kernel.org/stable/c/02b87e6334a38c65eef49848d3f1ac422f0b2a44
https://git.kernel.org/stable/c/5f0a6800b8aec1b453c7fe4c44fcaac5ffe9d52e
https://git.kernel.org/stable/c/e34191cce3ee63dfa5fb241904aaf2a042d5b6d8
https://git.kernel.org/stable/c/012be828a118bf496e666ef1fc47fc0e7358ada2
https://git.kernel.org/stable/c/be56dfc9be0604291267c07b0e27a69a6bda4899
https://git.kernel.org/stable/c/366c3f688dd0288cbe38af1d3a886b5c62372e4a
https://git.kernel.org/stable/c/4811f7af6090e8f5a398fbdd766f903ef6c0d787

Frequently Asked Questions

What is the severity of CVE-2024-42295?: CVE-2024-42295 has not yet been assigned a CVSS score.
How to fix CVE-2024-42295?: To fix CVE-2024-42295, 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-2024-42295 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-42295 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-2024-42295?: CVE-2024-42295 affects Linux Linux, Linux Linux.

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