CVE-2023-53786

dm flakey: fix a crash with invalid table line

N/A

Published: December 9, 2025 at 12:00 AM UTC

Updated: June 17, 2026 at 06:46 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

N/A

Exploit prediction

EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

3.1 ≤ v < 4.14.3153.1 ≤ v < 4.19.2833.1 ≤ v < 5.10.1803.1 ≤ v < 5.15.1113.1 ≤ v < 5.4.2433.1 ≤ v < 6.1.283.1 ≤ v < 6.2.153.1 ≤ v < 6.3.23.1 ≤ v < 6.43.1a3998799fb4df0b0af8271a7d50c4269032397aa

Vendor states this is fixed in 12849ed107c0b2869fb775c81208050899006f07 (fixed)

Vendor states this is fixed in 337b7af273562b73c46ef77a724604ad139ca762 (fixed)

Vendor states this is fixed in 8258d84a7917aeece773716518deadb7ad776cb7 (fixed)

Vendor states this is fixed in 83b4e3d878ea6be9aec1d5a1ab177c766c64d1a0 (fixed)

Vendor states this is fixed in 98dba02d9a93eec11bffbb93c7c51624290702d2 (fixed)

Vendor states this is fixed in a1e3fffe02e05c05357af91364ac0fc1ed425b5b (fixed)

Vendor states this is fixed in cb874a190f3f7c3c3fa5b979bee7a3b8cc3a19cc (fixed)

Vendor states this is fixed in f76fcb9d43ec014ac4a1bb983768696d5b032df9 (fixed)

Vendor states this is fixed in f95cb1526669ccdf7eb12eefd57a893953e3595f (fixed)

Vendor states this is fixed in 3.1 (unaffected)

Vendor states this is fixed in 4.14.315 (unaffected)

Vendor states this is fixed in 4.19.283 (unaffected)