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
Noroxi analysis
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We use this product, ask for help- Published
- Sep 15, 2025
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 4th percentile
- CWE
- —
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Report tools
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
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_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.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 6.1.37-1 | 6.1.37-1 |
| Debian:13 | linux | before 6.3.7-1 | 6.3.7-1 |
| Red Hat:rhel_aus:8.6::baseos | bpftool | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | bpftool-debuginfo | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-abi-stablelists | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-core | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-debug | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-debug-core | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-debug-debuginfo | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-debug-devel | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-debug-modules | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-debug-modules-extra | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-debuginfo | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-debuginfo-common-x86_64 | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-devel | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-doc | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-modules | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-modules-extra | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-tools | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-tools-debuginfo | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | kernel-tools-libs | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | perf | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
| Red Hat:rhel_aus:8.6::baseos | perf-debuginfo | before 0:4.18.0-372.170.1.el8_6 | 0:4.18.0-372.170.1.el8_6 |
+96
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
- CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV77This week
- CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV77This week
- CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV77This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 11181b6c8641cd417935b76ea997d0169f2db262 | Vendor (CNA) |
| Linux Linux | 12db28c3ef31f719bd18fa186a40bb152e6a527c | Vendor (CNA) |
| Linux Linux | c8ba6780c65f681d217de79e17d63d5d538a239f | Vendor (CNA) |
| Linux Linux | ec4d97e8eddcfa9f63f2f62adec5fb4f941ba2ef | Vendor (CNA) |
| debian:linux | 6.1.37-1 · Debian:12 | Package registry (OSV) |
| red hat:bpftool-debuginfo | 0:7.0.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstream | Package registry (OSV) |
| red hat:kernel-64k-debug-debuginfo | 0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstream | Package registry (OSV) |
| red hat:kernel-64k-debug-devel | 0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstream | Package registry (OSV) |
| red hat:kernel-64k-debug-devel-matched | 0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstream | Package registry (OSV) |
| red hat:kernel-64k-debuginfo | 0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstream | Package registry (OSV) |
| red hat:kernel-64k-devel | 0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstream | Package registry (OSV) |
| red hat:kernel-64k-devel-matched | 0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstream | Package registry (OSV) |
| red hat:kernel-debug-debuginfo | 0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstream | Package registry (OSV) |
| red hat:kernel-debug-devel | 0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstream | Package registry (OSV) |
| red hat:kernel-debug-devel-matched | 0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstream | Package registry (OSV) |
| red hat:kernel-debuginfo | 0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstream | Package registry (OSV) |
| red hat:kernel-debuginfo-common-aarch64 | 0:5.14.0-284.146.1.el9_2 · Red Hat:rhel_e4s:9.2::appstream | Package 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.
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.
Credits
All researchersFinders, 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
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/stable/c/11181b6c8641cd417935b76ea997d0169f2db262
- git.kernel.org/stable/c/12db28c3ef31f719bd18fa186a40bb152e6a527c
- git.kernel.org/stable/c/c8ba6780c65f681d217de79e17d63d5d538a239f
- git.kernel.org/stable/c/ec4d97e8eddcfa9f63f2f62adec5fb4f941ba2ef
Vendor advisories and official records. Exploit/PoC links are deliberately left out.