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 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.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 6.7 | 6.9.6 |
| linux / linux_kernel | 6.2 | 6.6.35 |
| debian / debian_linux | 11.0 | 11.0.x |
| linux / linux_kernel | 3.19 | 5.4.291 |
| linux / linux_kernel | 5.5 | 5.10.235 |
| linux / linux_kernel | 5.11 | 5.15.174 |
| linux / linux_kernel | 5.16 | 6.1.97 |
- https://git.kernel.org/stable/c/0b31e28fbd773aefb6164687e0767319b8199829
- https://git.kernel.org/stable/c/480afcbeb7aaaa22677d3dd48ec590b441eaac1a
- https://git.kernel.org/stable/c/7fb374981e31c193b1152ed8d3b0a95b671330d4
- https://git.kernel.org/stable/c/a78a6f0da57d058e2009e9958fdcef66f165208c
- https://git.kernel.org/stable/c/be84f32bb2c981ca670922e047cdde1488b233de
- https://git.kernel.org/stable/c/dd431c3ac1fc34a9268580dd59ad3e3c76b32a8c
- https://git.kernel.org/stable/c/edf287bc610b18d7a9c0c0c1cb2e97b9348c71bb
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
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