CVE-2024-26697
What it is
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix data corruption in dsync block recovery for small block sizes The helper function nilfs_recovery_copy_block() of nilfs_recovery_dsync_blocks(), which recovers data from logs created by data sync writes during a mount after an unclean shutdown, incorrectly calculates the on-page offset when copying repair data to the file's page cache. In environments where the block size is smaller than the page size, this flaw can cause data corruption and leak uninitialized memory bytes during the recovery process. Fix these issues by correcting this byte offset calculation on the page.
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
- Weakness
- CWE-787 · Out-of-bounds write
- Record status
- Modified
Affected
- Linux Kernel < 4.19.307
- Linux Kernel < 5.4.269
- Linux Kernel < 5.10.210
- Linux Kernel < 5.15.149
- Linux Kernel < 6.1.79
- Linux Kernel < 6.6.18
- Linux Kernel < 6.7.6
- Linux Kernel 6.8
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-2024-26697.md and follow it. Check whether this project is affected by CVE-2024-26697. 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/120f7fa2008e3bd8b7680b4ab5df942decf60fd5
- https://git.kernel.org/stable/c/2000016bab499074e6248ea85aeea7dd762355d9
- https://git.kernel.org/stable/c/2e1480538ef60bfee5473dfe02b1ecbaf1a4aa0d
- https://git.kernel.org/stable/c/364a66be2abdcd4fd426ffa44d9b8f40aafb3caa
- https://git.kernel.org/stable/c/5278c3eb6bf5896417572b52adb6be9d26e92f65
- https://git.kernel.org/stable/c/67b8bcbaed4777871bb0dcc888fb02a614a98ab1
- https://git.kernel.org/stable/c/9c9c68d64fd3284f7097ed6ae057c8441f39fcd3
- https://git.kernel.org/stable/c/a6efe6dbaaf504f5b3f8a5c3f711fe54e7dda0ba
- https://git.kernel.org/stable/c/120f7fa2008e3bd8b7680b4ab5df942decf60fd5
- https://git.kernel.org/stable/c/2000016bab499074e6248ea85aeea7dd762355d9
References
- https://git.kernel.org/stable/c/120f7fa2008e3bd8b7680b4ab5df942decf60fd5
- https://git.kernel.org/stable/c/2000016bab499074e6248ea85aeea7dd762355d9
- https://git.kernel.org/stable/c/2e1480538ef60bfee5473dfe02b1ecbaf1a4aa0d
- https://git.kernel.org/stable/c/364a66be2abdcd4fd426ffa44d9b8f40aafb3caa
- https://git.kernel.org/stable/c/5278c3eb6bf5896417572b52adb6be9d26e92f65
- https://git.kernel.org/stable/c/67b8bcbaed4777871bb0dcc888fb02a614a98ab1
- https://git.kernel.org/stable/c/9c9c68d64fd3284f7097ed6ae057c8441f39fcd3
- https://git.kernel.org/stable/c/a6efe6dbaaf504f5b3f8a5c3f711fe54e7dda0ba
- https://git.kernel.org/stable/c/120f7fa2008e3bd8b7680b4ab5df942decf60fd5
- https://git.kernel.org/stable/c/2000016bab499074e6248ea85aeea7dd762355d9
- https://git.kernel.org/stable/c/2e1480538ef60bfee5473dfe02b1ecbaf1a4aa0d
- https://git.kernel.org/stable/c/364a66be2abdcd4fd426ffa44d9b8f40aafb3caa
- https://git.kernel.org/stable/c/5278c3eb6bf5896417572b52adb6be9d26e92f65
- https://git.kernel.org/stable/c/67b8bcbaed4777871bb0dcc888fb02a614a98ab1
- https://git.kernel.org/stable/c/9c9c68d64fd3284f7097ed6ae057c8441f39fcd3
- https://git.kernel.org/stable/c/a6efe6dbaaf504f5b3f8a5c3f711fe54e7dda0ba
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html