CVE-2023-53654: linux
Vulnerability summary
CVE-2023-53654 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 4.2% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 11 · Related 10Timeline
- 07-10-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Add validation before accessing cgx and lmac with the addition of new MAC blocks like CN10K RPM and CN10KB RPM_USX, LMACs are noncontiguous and CGX blocks are also noncontiguous. But during RVU driver initialization, the driver is assuming they are contiguous and trying to access cgx or lmac with their id which is resulting in kernel panic. This patch fixes the issue by adding proper checks. [ 23.219150] pc : cgx_lmac_read+0x38/0x70 [ 23.219154] lr : rvu_program_channels+0x3f0/0x498 [ 23.223852] sp : ffff000100d6fc80 [ 23.227158] x29: ffff000100d6fc80 x28: ffff00010009f880 x27: 000000000000005a [ 23.234288] x26: ffff000102586768 x25: 0000000000002500 x24: fffffffffff0f000
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.15%
Chance of exploitation in the next 30 days
Percentile
4%
Versus all other CVEs
30-day change
0.00 pp
From 0.15% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu108 products
- linux< 5.15.0-86.96
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1047.52
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 91c6945ea1f9059fea886630d0fd8070740e2aaf, < e425e2ba933618ee5ec8e4f3eb341efeb6c9ddef | ≥ 91c6945ea1f9059fea886630d0fd8070740e2aaf, < a5485a943193e55c79150382e6461e8ea759e96e | ≥ 91c6945ea1f9059fea886630d0fd8070740e2aaf, < b04872e15f3df62cb2fd530950f769626e1ef489 | ≥ 91c6945ea1f9059fea886630d0fd8070740e2aaf, < 79ebb53772c95d3a6ae51b3c65f9985fdd430df6 | 5.12
- linux_kernel≥ 5.12, < 5.15.121 | ≥ 5.16, < 6.1.39 | ≥ 6.2, < 6.4.4
Debian1 product
- linux< 6.1.52-1 | < 6.4.4-1
3 vendors · 111 products
