CVE-2024-39494
In the Linux kernel, the following vulnerability has been resolved: ima: Fix use-after-free on a dentry's dname.name ->d_name.name can change on rename and the earlier value can be freed; there are conditions sufficient to stabilize it (->d_lock on…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.31%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: ima: Fix use-after-free on a dentry's dname.name ->d_name.name can change on rename and the earlier value can be freed; there are conditions sufficient to stabilize it (->d_lock on dentry, ->d_lock on its parent, ->i_rwsem exclusive on the parent's inode, rename_lock), but none of those are met at any of the sites. Take a stable snapshot of the name instead.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.31% probability · 24th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- debian/debian linux · linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0b31e28fbd773aefb6164687e0767319b8199829Patch
- https://git.kernel.org/stable/c/480afcbeb7aaaa22677d3dd48ec590b441eaac1aPatch
- https://git.kernel.org/stable/c/7fb374981e31c193b1152ed8d3b0a95b671330d4Patch
- https://git.kernel.org/stable/c/a78a6f0da57d058e2009e9958fdcef66f165208cPatch
- https://git.kernel.org/stable/c/be84f32bb2c981ca670922e047cdde1488b233dePatch
- https://git.kernel.org/stable/c/dd431c3ac1fc34a9268580dd59ad3e3c76b32a8cPatch
- https://git.kernel.org/stable/c/edf287bc610b18d7a9c0c0c1cb2e97b9348c71bbPatch
- https://git.kernel.org/stable/c/7fb374981e31c193b1152ed8d3b0a95b671330d4Patch
- https://git.kernel.org/stable/c/a78a6f0da57d058e2009e9958fdcef66f165208cPatch
- https://git.kernel.org/stable/c/be84f32bb2c981ca670922e047cdde1488b233dePatch
- https://git.kernel.org/stable/c/dd431c3ac1fc34a9268580dd59ad3e3c76b32a8cPatch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.