7.1

CVE-2023-53232: mt76: mt7921: fix kernel panic by accessing unallocated eeprom.data

Analyzed
AliasesUBUNTU-CVE-2023-53232DEBIAN-CVE-2023-53232
Published 15-09-2025Last modified 11-05-2026

Vulnerability summary

CVE-2023-53232 is a high (CVSS 7.1) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.1, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.1/10
010
High · v3.1 (NVD)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 2
RHSA-2023:6583RHSA-2023:7077RHSA-2025:21051RHSA-2025:21083RHSA-2025:21091RHSA-2025:21128

Timeline

  1. 15-09-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.16% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu84 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
  • linux-aws-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ 16d98b548365fcd6fc3fe2e1ae73c9e3cc5ee43d, < 11181b6c8641cd417935b76ea997d0169f2db262 | ≥ 16d98b548365fcd6fc3fe2e1ae73c9e3cc5ee43d, < c8ba6780c65f681d217de79e17d63d5d538a239f | ≥ 16d98b548365fcd6fc3fe2e1ae73c9e3cc5ee43d, < ec4d97e8eddcfa9f63f2f62adec5fb4f941ba2ef | ≥ 16d98b548365fcd6fc3fe2e1ae73c9e3cc5ee43d, < 12db28c3ef31f719bd18fa186a40bb152e6a527c | 5.16
  • linux_kernel≥ 5.16, < 6.1.28 | ≥ 6.2, < 6.2.15 | ≥ 6.3, < 6.3.2
Debian1 product
  • linux< 6.1.37-1 | < 6.3.7-1

3 vendors · 87 products

References

8 links