CVE-2023-53786: dm flakey: fix a crash with invalid table line

Deferred
AliasesUBUNTU-CVE-2023-53786DEBIAN-CVE-2023-53786
Published 09-12-2025Last modified 11-05-2026

Vulnerability summary

CVE-2023-53786 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 14.1% of scored vulnerabilities.

Priority
Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.23%
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 7 · Related 5
RHSA-2023:6583RHSA-2023:7077SUSE-SU-2026:0263-1SUSE-SU-2026:0316-1SUSE-SU-2026:0317-1SUSE-SU-2026:0411-1

Timeline

  1. 09-12-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: dm flakey: fix a crash with invalid table line This command will crash with NULL pointer dereference: dmsetup create flakey --table \ "0 `blockdev --getsize /dev/ram0` flakey /dev/ram0 0 0 1 2 corrupt_bio_byte 512" Fix the crash by checking if arg_name is non-NULL before comparing it.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.23% 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: not stated in public data.

Ubuntu125 products
  • linuxAll versions (No fix recorded) | < 5.4.0-162.179 | < 5.15.0-79.86
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1109.118 | < 5.15.0-1042.47
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.37-1 | < 6.3.7-1
Linux1 product
  • linux≥ a3998799fb4df0b0af8271a7d50c4269032397aa, < f95cb1526669ccdf7eb12eefd57a893953e3595f | ≥ a3998799fb4df0b0af8271a7d50c4269032397aa, < 12849ed107c0b2869fb775c81208050899006f07 | ≥ a3998799fb4df0b0af8271a7d50c4269032397aa, < 337b7af273562b73c46ef77a724604ad139ca762 | ≥ a3998799fb4df0b0af8271a7d50c4269032397aa, < a1e3fffe02e05c05357af91364ac0fc1ed425b5b | ≥ a3998799fb4df0b0af8271a7d50c4269032397aa, < f76fcb9d43ec014ac4a1bb983768696d5b032df9 | ≥ a3998799fb4df0b0af8271a7d50c4269032397aa, < cb874a190f3f7c3c3fa5b979bee7a3b8cc3a19cc | ≥ a3998799fb4df0b0af8271a7d50c4269032397aa, < 83b4e3d878ea6be9aec1d5a1ab177c766c64d1a0 | ≥ a3998799fb4df0b0af8271a7d50c4269032397aa, < 8258d84a7917aeece773716518deadb7ad776cb7 | ≥ a3998799fb4df0b0af8271a7d50c4269032397aa, < 98dba02d9a93eec11bffbb93c7c51624290702d2 | 3.1

3 vendors · 127 products

References

13 links
Show all 13 references