CVE-2023-53672
What it is
In the Linux kernel, the following vulnerability has been resolved: btrfs: output extra debug info if we failed to find an inline backref [BUG] Syzbot reported several warning triggered inside lookup_inline_extent_backref(). [CAUSE] As usual, the reproducer doesn't reliably trigger locally here, but at least we know the WARN_ON() is triggered when an inline backref can not be found, and it can only be triggered when @insert is true. (I.e. inserting a new inline backref, which means the backref should already exist) [ENHANCEMENT] After the WARN_ON(), dump all the parameters and the extent tree leaf to help debug.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.1% 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: 0.1% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Record status
- Analyzed
Affected
- Linux Kernel < 4.14.326
- Linux Kernel < 4.19.295
- Linux Kernel < 5.4.257
- Linux Kernel < 5.10.197
- Linux Kernel < 5.15.133
- Linux Kernel < 6.1.55
- Linux Kernel < 6.5.5
- Linux Kernel 3.9
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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-2023-53672.md and follow it. Check whether this project is affected by CVE-2023-53672. 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/28062cd6eda04035d8f6ded2001292ac8b496149
- https://git.kernel.org/stable/c/376b41524b71e494514720bd6114325b0a2ed19c
- https://git.kernel.org/stable/c/400e08a16604b534fdd82c5a288fa150d04f5f79
- https://git.kernel.org/stable/c/6994f806c6d1ae8b59344d3700358547f3b3fe1d
- https://git.kernel.org/stable/c/7afbfde45d665953b4d5a42a721e15bf0315d89b
- https://git.kernel.org/stable/c/7f72f50547b7af4ddf985b07fc56600a4deba281
- https://git.kernel.org/stable/c/b7c3cf2f6c42e6688b1c37215a0b1663f982f915
- https://git.kernel.org/stable/c/e70ba449b04b40584bdabb383d10455397cbf177
References
- https://git.kernel.org/stable/c/28062cd6eda04035d8f6ded2001292ac8b496149
- https://git.kernel.org/stable/c/376b41524b71e494514720bd6114325b0a2ed19c
- https://git.kernel.org/stable/c/400e08a16604b534fdd82c5a288fa150d04f5f79
- https://git.kernel.org/stable/c/6994f806c6d1ae8b59344d3700358547f3b3fe1d
- https://git.kernel.org/stable/c/7afbfde45d665953b4d5a42a721e15bf0315d89b
- https://git.kernel.org/stable/c/7f72f50547b7af4ddf985b07fc56600a4deba281
- https://git.kernel.org/stable/c/b7c3cf2f6c42e6688b1c37215a0b1663f982f915
- https://git.kernel.org/stable/c/e70ba449b04b40584bdabb383d10455397cbf177