CVE-2022-50252
In the Linux kernel, the following vulnerability has been resolved: igb: Do not free q_vector unless new one was allocated Avoid potential use-after-free condition under memory pressure.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.16%). 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: igb: Do not free q_vector unless new one was allocated Avoid potential use-after-free condition under memory pressure. If the kzalloc() fails, q_vector will be freed but left in the original adapter->q_vector[v_idx] array position.
- 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
- 0.16% probability · 6th 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/0200f0fbb11e359cc35af72ab10b2ec224e6f633Patch
- https://git.kernel.org/stable/c/0668716506ca66f90d395f36ccdaebc3e0e84801Patch
- https://git.kernel.org/stable/c/314f7092b27749bdde44c14095b5533afa2a3bc8Patch
- https://git.kernel.org/stable/c/3cb18dea11196fb4a06f78294cec5e61985e1affPatch
- https://git.kernel.org/stable/c/56483aecf6b22eb7dff6315b3a174688c6ad494cPatch
- https://git.kernel.org/stable/c/64ca1969599857143e91aeec4440640656100803Patch
- https://git.kernel.org/stable/c/68e8adbcaf7a8743e473343b38b9dad66e2ac6f3Patch
- https://git.kernel.org/stable/c/6e399577bd397a517df4b938601108c63769ce0aPatch
- https://git.kernel.org/stable/c/f96bd8adc8adde25390965a8c1ee81b73cb62075Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.