CVE-2024-26955
What it is
In the Linux kernel, the following vulnerability has been resolved: nilfs2: prevent kernel bug at submit_bh_wbc() Fix a bug where nilfs_get_block() returns a successful status when searching and inserting the specified block both fail inconsistently. If this inconsistent behavior is not due to a previously fixed bug, then an unexpected race is occurring, so return a temporary error -EAGAIN instead. This prevents callers such as __block_write_begin_int() from requesting a read into a buffer that is not mapped, which would cause the BUG_ON check for the BH_Mapped flag in submit_bh_wbc() to fail.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Record status
- Analyzed
Affected
- Linux Kernel < 4.19.312
- Linux Kernel < 5.4.274
- Linux Kernel < 5.10.215
- Linux Kernel < 5.15.154
- Linux Kernel < 6.1.84
- Linux Kernel < 6.6.24
- Linux Kernel < 6.7.12
- Linux Kernel < 6.8.3
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2024-26955.md and follow it. Check whether this project is affected by CVE-2024-26955. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/0c8aa4cfda4e4adb15d5b6536d155eca9c9cd44c
- https://git.kernel.org/stable/c/192e9f9078c96be30b31c4b44d6294b24520fce5
- https://git.kernel.org/stable/c/269cdf353b5bdd15f1a079671b0f889113865f20
- https://git.kernel.org/stable/c/32eaee72e96590a75445c8a6c7c1057673b47e07
- https://git.kernel.org/stable/c/48d443d200237782dc82e6b60663ec414ef02e39
- https://git.kernel.org/stable/c/76ffbe911e2798c7296968f5fd72f7bf67207a8d
- https://git.kernel.org/stable/c/91e4c4595fae5e87069e44687ae879091783c183
- https://git.kernel.org/stable/c/ca581d237f3b8539c044205bb003de71d75d227c
- https://git.kernel.org/stable/c/f0fe7ad5aff4f0fcf988913313c497de85f1e186
- https://git.kernel.org/stable/c/0c8aa4cfda4e4adb15d5b6536d155eca9c9cd44c
References
- https://git.kernel.org/stable/c/0c8aa4cfda4e4adb15d5b6536d155eca9c9cd44c
- https://git.kernel.org/stable/c/192e9f9078c96be30b31c4b44d6294b24520fce5
- https://git.kernel.org/stable/c/269cdf353b5bdd15f1a079671b0f889113865f20
- https://git.kernel.org/stable/c/32eaee72e96590a75445c8a6c7c1057673b47e07
- https://git.kernel.org/stable/c/48d443d200237782dc82e6b60663ec414ef02e39
- https://git.kernel.org/stable/c/76ffbe911e2798c7296968f5fd72f7bf67207a8d
- https://git.kernel.org/stable/c/91e4c4595fae5e87069e44687ae879091783c183
- https://git.kernel.org/stable/c/ca581d237f3b8539c044205bb003de71d75d227c
- https://git.kernel.org/stable/c/f0fe7ad5aff4f0fcf988913313c497de85f1e186
- https://git.kernel.org/stable/c/0c8aa4cfda4e4adb15d5b6536d155eca9c9cd44c
- https://git.kernel.org/stable/c/192e9f9078c96be30b31c4b44d6294b24520fce5
- https://git.kernel.org/stable/c/269cdf353b5bdd15f1a079671b0f889113865f20
- https://git.kernel.org/stable/c/32eaee72e96590a75445c8a6c7c1057673b47e07
- https://git.kernel.org/stable/c/48d443d200237782dc82e6b60663ec414ef02e39
- https://git.kernel.org/stable/c/76ffbe911e2798c7296968f5fd72f7bf67207a8d
- https://git.kernel.org/stable/c/91e4c4595fae5e87069e44687ae879091783c183
- https://git.kernel.org/stable/c/ca581d237f3b8539c044205bb003de71d75d227c
- https://git.kernel.org/stable/c/f0fe7ad5aff4f0fcf988913313c497de85f1e186
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html