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Review reviewHigh

CVE-2022-50252

Linux Linux, linux kernel

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
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2025.09.15
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

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.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 72ddef0506da852dc82f078f37ced8ef4d74a2bf < 64ca1969599857143e91aeec4440640656100803, >= 72ddef0506da852dc82f078f37ced8ef4d74a2bf < 0200f0fbb11e359cc35af72ab10b2ec224e6f633, >= 72ddef0506da852dc82f078f37ced8ef4d74a2bf < 68e8adbcaf7a8743e473343b38b9dad66e2ac6f3, >= 72ddef0506da852dc82f078f37ced8ef4d74a2bf < f96bd8adc8adde25390965a8c1ee81b73cb62075, >= 72ddef0506da852dc82f078f37ced8ef4d74a2bf < 3cb18dea11196fb4a06f78294cec5e61985e1aff, >= 72ddef0506da852dc82f078f37ced8ef4d74a2bf < 314f7092b27749bdde44c14095b5533afa2a3bc8, >= 72ddef0506da852dc82f078f37ced8ef4d74a2bf < 6e399577bd397a517df4b938601108c63769ce0a, >= 72ddef0506da852dc82f078f37ced8ef4d74a2bf < 56483aecf6b22eb7dff6315b3a174688c6ad494c, >= 72ddef0506da852dc82f078f37ced8ef4d74a2bf < 0668716506ca66f90d395f36ccdaebc3e0e84801, >= 5be042b1917ddf444c20f4e12856535307b37c01, >= a0e26ed623a1e1460c1a191fbc0f37bddab7851a, >= f4b7f93cd34a6153d454a837708fd4203990d1ae, >= 3.18.23 < 3.19, >= 4.1.9 < 4.2, >= 4.2.2 < 4.3, >= 4.3, < 4.9.337, >= 4.10 < 4.14.303, >= 4.15 < 4.19.270, >= 4.20 < 5.4.229
Fixed versions
4.9.337, 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.86, 6.0.16, 6.1.2

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-416