CVE-2021-47257

net: ieee802154: fix null deref in parse dev addr

MEDIUM
5.5
CVSS Score
Published: May 21, 2024 at 02:19 PM UTC
Updated: June 17, 2026 at 04:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: net: ieee802154: fix null deref in parse dev addr Fix a logic error that could result in a null deref if the user sets the mode incorrectly for the given addr type.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.9.2744.10 ≤ v < 4.14.2384.15 ≤ v < 4.19.1964.20 ≤ v < 5.4.1274.4 ≤ v < 4.14.2384.4 ≤ v < 4.19.1964.4 ≤ v < 4.9.2744.4 ≤ v < 5.10.454.4 ≤ v < 5.12.124.4 ≤ v < 5.134.4 ≤ v < 5.4.1275.11 ≤ v < 5.12.125.5 ≤ v < 5.10.455.13 rc15.13 rc25.13 rc35.13 rc4a26c5fd7622d4951425131d54a8c99f076fe2068
Vendor states this is fixed in 1f95741981c899c4724647291fec5faa3c777185 (fixed)
Vendor states this is fixed in 5f728ec65485625e30f46e5b4917ff023ad29ea0 (fixed)
Vendor states this is fixed in 9fdd04918a452980631ecc499317881c1d120b70 (fixed)
Vendor states this is fixed in c6998ccfefa652bac3f9b236821e392af43efa1e (fixed)
Vendor states this is fixed in c7836de2cadd88bc2f20f2c5a3d4ef4c73aef627 (fixed)
Vendor states this is fixed in d0f47648b87b6d5f204cb7f3cbce6d36dab85a67 (fixed)
Vendor states this is fixed in fdd51e34f45311ab6e48d2147cbc2904731b9993 (fixed)
Vendor states this is fixed in 4.14.238 (unaffected)
Vendor states this is fixed in 4.19.196 (unaffected)
Vendor states this is fixed in 4.4 (unaffected)
Vendor states this is fixed in 4.9.274 (unaffected)
Vendor states this is fixed in 5.10.45 (unaffected)
Vendor states this is fixed in 5.12.12 (unaffected)
Vendor states this is fixed in 5.13 (unaffected)
Vendor states this is fixed in 5.4.127 (unaffected)

References (7)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/1f95741981c899c4724647291fec5faa3c777185
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/5f728ec65485625e30f46e5b4917ff023ad29ea0
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9fdd04918a452980631ecc499317881c1d120b70
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c6998ccfefa652bac3f9b236821e392af43efa1e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c7836de2cadd88bc2f20f2c5a3d4ef4c73aef627
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d0f47648b87b6d5f204cb7f3cbce6d36dab85a67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fdd51e34f45311ab6e48d2147cbc2904731b9993

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-476

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