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CVE-2021-47149

net: fujitsu: fix potential null-ptr-deref

MEDIUM
5.5
CVSS Score
Published: March 25, 2024 at 09:07 AM UTC
Updated: June 17, 2026 at 04:16 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: fujitsu: fix potential null-ptr-deref In fmvj18x_get_hwinfo(), if ioremap fails there will be NULL pointer deref. To fix this, check the return value of ioremap and return -1 to the caller in case of failure.

Affected

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

Linux Kernel· Linux
95%
v < 4.4.2712.6.12 ≤ v < 4.14.2352.6.12 ≤ v < 4.19.1932.6.12 ≤ v < 4.4.2712.6.12 ≤ v < 4.9.2712.6.12 ≤ v < 5.10.422.6.12 ≤ v < 5.12.92.6.12 ≤ v < 5.132.6.12 ≤ v < 5.4.1244.10 ≤ v < 4.14.2354.15 ≤ v < 4.19.1934.20 ≤ v < 5.4.1244.5 ≤ v < 4.9.2715.11 ≤ v < 5.12.95.5 ≤ v < 5.10.421da177e4c3f41524e886b7f1b8a0c1fc7321cac25.13 rc15.13 rc2
Vendor states this is fixed in 22049c3d40f08facd1867548716a484dad6b3251 (fixed)
Vendor states this is fixed in 52202be1cd996cde6e8969a128dc27ee45a7cb5e (fixed)
Vendor states this is fixed in 6dbf1101594f7c76990b63c35b5a40205a914b6b (fixed)
Vendor states this is fixed in 71723a796ab7881f491d663c6cd94b29be5fba50 (fixed)
Vendor states this is fixed in 7883d3895d0fbb0ba9bff0f8665f99974b45210f (fixed)
Vendor states this is fixed in b92170e209f7746ed72eaac98f2c2f4b9af734e6 (fixed)
Vendor states this is fixed in c4f1c23edbe921ab2ecd6140d700e756cd44c5f7 (fixed)
Vendor states this is fixed in f14bf57a08779a5dee9936f63ada0149ea89c5e6 (fixed)
Vendor states this is fixed in 2.6.12 (unaffected)
Vendor states this is fixed in 4.14.235 (unaffected)
Vendor states this is fixed in 4.19.193 (unaffected)
Vendor states this is fixed in 4.4.271 (unaffected)
Vendor states this is fixed in 4.9.271 (unaffected)
Vendor states this is fixed in 5.10.42 (unaffected)
Vendor states this is fixed in 5.12.9 (unaffected)
Vendor states this is fixed in 5.13 (unaffected)
Vendor states this is fixed in 5.4.124 (unaffected)

References (8)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/22049c3d40f08facd1867548716a484dad6b3251
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/52202be1cd996cde6e8969a128dc27ee45a7cb5e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6dbf1101594f7c76990b63c35b5a40205a914b6b
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/71723a796ab7881f491d663c6cd94b29be5fba50
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7883d3895d0fbb0ba9bff0f8665f99974b45210f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b92170e209f7746ed72eaac98f2c2f4b9af734e6
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c4f1c23edbe921ab2ecd6140d700e756cd44c5f7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f14bf57a08779a5dee9936f63ada0149ea89c5e6

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

5.5MEDIUM[email protected]
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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