Description
In the Linux kernel, the following vulnerability has been resolved:
iio: mma8452: Fix trigger reference couting
The mma8452 driver directly assigns a trigger to the struct iio_dev. The IIO core when done using this trigger will call `iio_trigger_put()` to drop the reference count by 1.
Without the matching `iio_trigger_get()` in the driver the reference count can reach 0 too early, the trigger gets freed while still in use and a use-after-free occurs.
Fix this by getting a reference to the trigger before assigning it to the IIO device.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= ae6d9ce05691bf79694074db7c7da980080548af, < 094d513b78b1714113bc016684b8142382e071ba; >= ae6d9ce05691bf79694074db7c7da980080548af, < fb75cc4740d81264cd5bcb0e17d961d018a8be96; >= ae6d9ce05691bf79694074db7c7da980080548af, < 794c0898f6bf39a458655d5fb4af70ec43a5cfcb; >= ae6d9ce05691bf79694074db7c7da980080548af, < f5deab10ced368c807866283f8b79144c4823be8; >= ae6d9ce05691bf79694074db7c7da980080548af, < acf0088ac073ca6e7f4cad6acac112177e08df5e; >= ae6d9ce05691bf79694074db7c7da980080548af, < db12d95085367de8b0223929d1332731024441f1; >= ae6d9ce05691bf79694074db7c7da980080548af, < c43517071dfc9fce34f8f69dbb98a86017f6b739; >= ae6d9ce05691bf79694074db7c7da980080548af, < cd0082235783f814241a1c9483fb89e405f4f892 |
| Linux | Linux | 4.2 |
References
- https://git.kernel.org/stable/c/094d513b78b1714113bc016684b8142382e071baPatch
- https://git.kernel.org/stable/c/794c0898f6bf39a458655d5fb4af70ec43a5cfcbPatch
- https://git.kernel.org/stable/c/acf0088ac073ca6e7f4cad6acac112177e08df5ePatch
- https://git.kernel.org/stable/c/c43517071dfc9fce34f8f69dbb98a86017f6b739Patch
- https://git.kernel.org/stable/c/cd0082235783f814241a1c9483fb89e405f4f892Patch
- https://git.kernel.org/stable/c/db12d95085367de8b0223929d1332731024441f1Patch
- https://git.kernel.org/stable/c/f5deab10ced368c807866283f8b79144c4823be8Patch
- https://git.kernel.org/stable/c/fb75cc4740d81264cd5bcb0e17d961d018a8be96Patch
- https://git.kernel.org/stable/c/094d513b78b1714113bc016684b8142382e071baPatch
- https://git.kernel.org/stable/c/794c0898f6bf39a458655d5fb4af70ec43a5cfcbPatch
- https://git.kernel.org/stable/c/acf0088ac073ca6e7f4cad6acac112177e08df5ePatch
- https://git.kernel.org/stable/c/c43517071dfc9fce34f8f69dbb98a86017f6b739Patch
- https://git.kernel.org/stable/c/cd0082235783f814241a1c9483fb89e405f4f892Patch
- https://git.kernel.org/stable/c/db12d95085367de8b0223929d1332731024441f1Patch
- https://git.kernel.org/stable/c/f5deab10ced368c807866283f8b79144c4823be8Patch
- https://git.kernel.org/stable/c/fb75cc4740d81264cd5bcb0e17d961d018a8be96Patch
Timeline
- Published
- May 24, 2024
- Last modified
- Aug 4, 2026
- NVD status
- Modified