CVE-2024-26694
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: fix double-free bug The storage for the TLV PC register data wasn't done like all the other storage in the drv->fw area, which is cleared at the end of deallocation.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). 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: wifi: iwlwifi: fix double-free bug The storage for the TLV PC register data wasn't done like all the other storage in the drv->fw area, which is cleared at the end of deallocation. Therefore, the freeing must also be done differently, explicitly NULL'ing it out after the free, since otherwise there's a nasty double-free bug here if a file fails to load after this has been parsed, and we get another free later (e.g. because no other file exists.) Fix that by adding the missing NULL assignment.
- 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
- 0.25% probability · 17th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-415
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/353d321f63f7dbfc9ef58498cc732c9fe886a596Patch
- https://git.kernel.org/stable/c/ab9d4bb9a1892439b3123fc52b19e32b9cdf80adPatch
- https://git.kernel.org/stable/c/d24eb9a27bea8fe5237fa71be274391d9d51eff2Patch
- https://git.kernel.org/stable/c/353d321f63f7dbfc9ef58498cc732c9fe886a596Patch
- https://git.kernel.org/stable/c/ab9d4bb9a1892439b3123fc52b19e32b9cdf80adPatch
- https://git.kernel.org/stable/c/d24eb9a27bea8fe5237fa71be274391d9d51eff2Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.