CVE-2023-53786
published 2025-12-09CVE-2023-53786: 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…
PriorityP421low4.7
EPSS
0.23%
13.6th percentile
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
23 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.37-1 (bookworm) | linux 6.1.37-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= a3998799fb4df0b0af8271a7d50c4269032397aa < f95cb1526669ccdf7eb12eefd57a893953e3595f | f95cb1526669ccdf7eb12eefd57a893953e3595f |
| linux | linux | >= a3998799fb4df0b0af8271a7d50c4269032397aa < 12849ed107c0b2869fb775c81208050899006f07 | 12849ed107c0b2869fb775c81208050899006f07 |
| linux | linux | >= a3998799fb4df0b0af8271a7d50c4269032397aa < 337b7af273562b73c46ef77a724604ad139ca762 | 337b7af273562b73c46ef77a724604ad139ca762 |
| linux | linux | >= a3998799fb4df0b0af8271a7d50c4269032397aa < a1e3fffe02e05c05357af91364ac0fc1ed425b5b | a1e3fffe02e05c05357af91364ac0fc1ed425b5b |
| linux | linux | >= a3998799fb4df0b0af8271a7d50c4269032397aa < f76fcb9d43ec014ac4a1bb983768696d5b032df9 | f76fcb9d43ec014ac4a1bb983768696d5b032df9 |
| linux | linux | >= a3998799fb4df0b0af8271a7d50c4269032397aa < cb874a190f3f7c3c3fa5b979bee7a3b8cc3a19cc | cb874a190f3f7c3c3fa5b979bee7a3b8cc3a19cc |
| linux | linux | >= a3998799fb4df0b0af8271a7d50c4269032397aa < 83b4e3d878ea6be9aec1d5a1ab177c766c64d1a0 | 83b4e3d878ea6be9aec1d5a1ab177c766c64d1a0 |
| linux | linux | >= a3998799fb4df0b0af8271a7d50c4269032397aa < 8258d84a7917aeece773716518deadb7ad776cb7 | 8258d84a7917aeece773716518deadb7ad776cb7 |
| linux | linux | >= a3998799fb4df0b0af8271a7d50c4269032397aa < 98dba02d9a93eec11bffbb93c7c51624290702d2 | 98dba02d9a93eec11bffbb93c7c51624290702d2 |
| linux | linux_kernel | >= 0 < 5.10.191-1 | 5.10.191-1 |
| linux | linux_kernel | >= 0 < 6.1.37-1 | 6.1.37-1 |
| linux | linux_kernel | >= 0 < 6.3.7-1 | 6.3.7-1 |
| linux | linux_kernel | >= 0 < 6.3.7-1 | 6.3.7-1 |
| linux | linux_kernel | >= 3.1.0 < 4.14.315 | 4.14.315 |
| linux | linux_kernel | >= 4.15.0 < 4.19.283 | 4.19.283 |
| linux | linux_kernel | >= 4.20.0 < 5.4.243 | 5.4.243 |
| linux | linux_kernel | >= 5.11.0 < 5.15.111 | 5.15.111 |
| linux | linux_kernel | >= 5.16.0 < 6.1.28 | 6.1.28 |
| linux | linux_kernel | >= 5.5.0 < 5.10.180 | 5.10.180 |
| linux | linux_kernel | >= 6.2.0 < 6.2.15 | 6.2.15 |
| linux | linux_kernel | >= 6.3.0 < 6.3.2 | 6.3.2 |
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
OSV
CVE-2023-53786: 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 p
osv·2025-12-09
CVE-2023-53786 CVE-2023-53786: 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 p
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.
GHSA
GHSA-7fp9-v4p9-p354: 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
ghsa_unreviewed·2025-12-09
CVE-2023-53786 GHSA-7fp9-v4p9-p354: 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
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.
OSV
dm flakey: fix a crash with invalid table line
osv·2025-12-09
CVE-2023-53786 dm flakey: fix a crash with invalid table line
dm flakey: fix a crash with invalid table line
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.
Red Hat
kernel: dm flakey: fix a crash with invalid table line
vendor_redhat·2025-12-09·CVSS 4.7
CVE-2023-53786 [LOW] CWE-476 kernel: dm flakey: fix a crash with invalid table line
kernel: dm flakey: fix a crash with invalid table line
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.
A flaw was identified in the device-mapper “dm flakey” target in the Linux kernel where invalid table line input can lead to a NULL pointer dereference. Specifically, when dmsetup is used with a malformed table line (such as with the corrupt_bio_byte target) and the arg_name pointer is NULL, the kernel attempts to dereference it, leading to a system crash (kernel panic). This is due to
Debian
CVE-2023-53786: linux - In the Linux kernel, the following vulnerability has been resolved: dm flakey: ...
vendor_debian·2023
CVE-2023-53786 CVE-2023-53786: linux - In the Linux kernel, the following vulnerability has been resolved: dm flakey: ...
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.
Scope: local
bookworm: resolved (fixed in 6.1.37-1)
bullseye: resolved (fixed in 5.10.191-1)
forky: resolved (fixed in 6.3.7-1)
sid: resolved (fixed in 6.3.7-1)
trixie: resolved (fixed in 6.3.7-1)
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/12849ed107c0b2869fb775c81208050899006f07https://git.kernel.org/stable/c/337b7af273562b73c46ef77a724604ad139ca762https://git.kernel.org/stable/c/8258d84a7917aeece773716518deadb7ad776cb7https://git.kernel.org/stable/c/83b4e3d878ea6be9aec1d5a1ab177c766c64d1a0https://git.kernel.org/stable/c/98dba02d9a93eec11bffbb93c7c51624290702d2https://git.kernel.org/stable/c/a1e3fffe02e05c05357af91364ac0fc1ed425b5bhttps://git.kernel.org/stable/c/cb874a190f3f7c3c3fa5b979bee7a3b8cc3a19cchttps://git.kernel.org/stable/c/f76fcb9d43ec014ac4a1bb983768696d5b032df9https://git.kernel.org/stable/c/f95cb1526669ccdf7eb12eefd57a893953e3595f
2025-12-09
Published