CVE-2022-48787
In the Linux kernel, the following vulnerability has been resolved: iwlwifi: fix use-after-free If no firmware was present at all (or, presumably, all of the firmware files failed to parse), we end up unbinding by calling device_release_driver(), which…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.24%). 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: iwlwifi: fix use-after-free If no firmware was present at all (or, presumably, all of the firmware files failed to parse), we end up unbinding by calling device_release_driver(), which calls remove(), which then in iwlwifi calls iwl_drv_stop(), freeing the 'drv' struct. However the new code I added will still erroneously access it after it was freed. Set 'failure=false' in this case to avoid the access, all data was already freed anyway.
- 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
- 0.24% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/008508c16af0087cda0394e1ac6f0493b01b6063Patch
- https://git.kernel.org/stable/c/494de920d98f125b099f27a2d274850750aff957Patch
- https://git.kernel.org/stable/c/7d6475179b85a83186ccce59cdc359d4f07d0bcbPatch
- https://git.kernel.org/stable/c/9958b9cbb22145295ee1ffaea0904c383da2c05dPatch
- https://git.kernel.org/stable/c/bea2662e7818e15d7607d17d57912ac984275d94Patch
- https://git.kernel.org/stable/c/d3b98fe36f8a06ce654049540773256ab59cb53dPatch
- https://git.kernel.org/stable/c/ddd46059f7d99119b62d44c519df7a79f2e6a515Patch
- https://git.kernel.org/stable/c/008508c16af0087cda0394e1ac6f0493b01b6063Patch
- https://git.kernel.org/stable/c/494de920d98f125b099f27a2d274850750aff957Patch
- https://git.kernel.org/stable/c/7d6475179b85a83186ccce59cdc359d4f07d0bcbPatch
- https://git.kernel.org/stable/c/9958b9cbb22145295ee1ffaea0904c383da2c05dPatch
- https://git.kernel.org/stable/c/bea2662e7818e15d7607d17d57912ac984275d94Patch
- https://git.kernel.org/stable/c/d3b98fe36f8a06ce654049540773256ab59cb53dPatch
- https://git.kernel.org/stable/c/ddd46059f7d99119b62d44c519df7a79f2e6a515Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.