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CVE-2023-53232· NVD / CVE Program· CNA Linux

mt76: mt7921: fix kernel panic by accessing unallocated eeprom.data

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7921: fix kernel panic by accessing unallocated eeprom.data The MT7921 driver no longer uses eeprom.data, but the relevant code has not been removed completely since commit 16d98b548365 ("mt76: mt7921: rely on mcu_get_nic_capability"). This could result in potential invalid memory access. To fix the kernel panic issue in mt7921, it is necessary to avoid accessing unallocated eeprom.data which can lead to invalid memory access. Furthermore, it is possible to entirely eliminate the mt7921_mcu_parse_eeprom function and solely depend on mt7921_mcu_parse_response to divide the RxD header. [2.702735] BUG: kernel NULL pointer dereference, address: 0000000000000550 [2.702740] #PF: supervisor write access in kernel mode [2.702741] #PF: error_code(0x0002) - not-present page [2.702743] PGD 0 P4D 0 [2.702747] Oops: 0002 [#1] PREEMPT SMP NOPTI [2.702755] RIP: 0010:mt7921_mcu_parse_response+0x147/0x170 [mt7921_common] [2.702758] RSP: 0018:ffffae7c00fef828 EFLAGS: 00010286 [2.702760] RAX: ffffa367f57be024 RBX: ffffa367cc7bf500 RCX: 0000000000000000 [2.702762] RDX: 0000000000000550 RSI: 0000000000000000 RDI: ffffa367cc7bf500 [2.702763] RBP: ffffae7c00fef840 R08: ffffa367cb167000 R09: 0000000000000005 [2.702764] R10: 0000000000000000 R11: ffffffffc04702e4 R12: ffffa367e8329f40 [2.702766] R13: 0000000000000000 R14: 0000000000000001 R15: ffffa367e8329f40 [2.702768] FS: 000079ee6cf20c40(0000) GS:ffffa36b2f940000(0000) knlGS:0000000000000000 [2.702769] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [2.702775] CR2: 0000000000000550 CR3: 00000001233c6004 CR4: 0000000000770ee0 [2.702776] PKRU: 55555554 [2.702777] Call Trace: [2.702782] mt76_mcu_skb_send_and_get_msg+0xc3/0x11e [mt76 <HASH:1bc4 5>] [2.702785] mt7921_run_firmware+0x241/0x853 [mt7921_common <HASH:6a2f 6>] [2.702789] mt7921e_mcu_init+0x2b/0x56 [mt7921e <HASH:d290 7>] [2.702792] mt7921_register_device+0x2eb/0x5a5 [mt7921_common <HASH:6a2f 6>] [2.702795] ? mt7921_irq_tasklet+0x1d4/0x1d4 [mt7921e <HASH:d290 7>] [2.702797] mt7921_pci_probe+0x2d6/0x319 [mt7921e <HASH:d290 7>] [2.702799] pci_device_probe+0x9f/0x12a

HighCVSS 7.1 · v3.1—No exploit Fix available

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Published
Sep 15, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 4th percentile
CWE
—
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Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Affected systems

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel5.16 and later · before 6.1.28
  • linux linux kernel6.2 and later · before 6.2.15
  • linux linux kernel6.3 and later · before 6.3.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 5.16affected
    • 16d98b548365fcd6fc3fe2e1ae73c9e3cc5ee43d and later · before 11181b6c8641cd417935b76ea997d0169f2db262affected · git
    • 16d98b548365fcd6fc3fe2e1ae73c9e3cc5ee43d and later · before c8ba6780c65f681d217de79e17d63d5d538a239faffected · git
    • 16d98b548365fcd6fc3fe2e1ae73c9e3cc5ee43d and later · before ec4d97e8eddcfa9f63f2f62adec5fb4f941ba2efaffected · git
    • 16d98b548365fcd6fc3fe2e1ae73c9e3cc5ee43d and later · before 12db28c3ef31f719bd18fa186a40bb152e6a527caffected · git
    • before 5.16not affected · semver
    • 6.1.28 and later · up to and including 6.1.*not affected · semver
    • 6.2.15 and later · up to and including 6.2.*not affected · semver
    • 6.3.2 and later · up to and including 6.3.*not affected · semver
    • 6.4 and laternot affected · original_commit_for_fix

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.37-16.1.37-1
Debian:13linuxbefore 6.3.7-16.3.7-1
Red Hat:rhel_aus:8.6::baseosbpftoolbefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseosbpftool-debuginfobefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernelbefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-abi-stablelistsbefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-corebefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-debugbefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-debug-corebefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-debug-debuginfobefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-debug-develbefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-debug-modulesbefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-debug-modules-extrabefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-debuginfobefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-debuginfo-common-x86_64before 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-develbefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-docbefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-modulesbefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-modules-extrabefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-toolsbefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-tools-debuginfobefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseoskernel-tools-libsbefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseosperfbefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6
Red Hat:rhel_aus:8.6::baseosperf-debuginfobefore 0:4.18.0-372.170.1.el8_60:4.18.0-372.170.1.el8_6

+96

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Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux11181b6c8641cd417935b76ea997d0169f2db262Vendor (CNA)
Linux Linux12db28c3ef31f719bd18fa186a40bb152e6a527cVendor (CNA)
Linux Linuxc8ba6780c65f681d217de79e17d63d5d538a239fVendor (CNA)
Linux Linuxec4d97e8eddcfa9f63f2f62adec5fb4f941ba2efVendor (CNA)
debian:linux6.1.37-1 · Debian:12Package registry (OSV)
red hat:bpftool-debuginfo0:7.0.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-debuginfo0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel-matched0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-debuginfo0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-devel0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-devel-matched0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstreamPackage registry (OSV)
red hat:kernel-debug-debuginfo0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstreamPackage registry (OSV)
red hat:kernel-debug-devel0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstreamPackage registry (OSV)
red hat:kernel-debug-devel-matched0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstreamPackage registry (OSV)
red hat:kernel-debuginfo0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstreamPackage registry (OSV)
red hat:kernel-debuginfo-common-aarch640:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstreamPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

All records