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CVE Vulnerability Details :
CVE-2026-43123
PUBLISHED
More InfoOfficial Page
Assigner-Linux
Assigner Org ID-416baaa9-dc9f-4396-8d5f-8c081fb06d67
View Known Exploited Vulnerability (KEV) details
Published At-06 May, 2026 | 11:27
Updated At-11 May, 2026 | 22:18
Rejected At-
▼CVE Numbering Authority (CNA)
fbcon: check return value of con2fb_acquire_newinfo()

In the Linux kernel, the following vulnerability has been resolved: fbcon: check return value of con2fb_acquire_newinfo() If fbcon_open() fails when called from con2fb_acquire_newinfo() then info->fbcon_par pointer remains NULL which is later dereferenced. Add check for return value of the function con2fb_acquire_newinfo() to avoid it. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected Products
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • drivers/video/fbdev/core/fbcon.c
Default Status
unaffected
Versions
Affected
  • From d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e before d3e535533767c85788529e626478718b7e95a59f (git)
  • From d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e before 3b5a754ec86bc6064af9aca76eb191c2405e6b0c (git)
  • From d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e before a785c4e2a999c2d51dfcf40d317cfb30cc735d2c (git)
  • From d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e before 0b038c0be6827dd2dbb1ce4f8d92d97c80cbe9cc (git)
  • From d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e before 11a93180a70bb3095a9bd80d113d9277e30d9959 (git)
  • From d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e before f57b61624c86ef8f87f6e6b7dd0755de03d90e89 (git)
  • From d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e before 011a0502801c8536f64141a2b61362c14f456544 (git)
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • drivers/video/fbdev/core/fbcon.c
Default Status
affected
Versions
Affected
  • 2.6.23
Unaffected
  • From 0 before 2.6.23 (semver)
  • From 5.15.203 through 5.15.* (semver)
  • From 6.1.165 through 6.1.* (semver)
  • From 6.6.128 through 6.6.* (semver)
  • From 6.12.75 through 6.12.* (semver)
  • From 6.18.16 through 6.18.* (semver)
  • From 6.19.6 through 6.19.* (semver)
  • From 7.0 through * (original_commit_for_fix)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://git.kernel.org/stable/c/d3e535533767c85788529e626478718b7e95a59f
N/A
https://git.kernel.org/stable/c/3b5a754ec86bc6064af9aca76eb191c2405e6b0c
N/A
https://git.kernel.org/stable/c/a785c4e2a999c2d51dfcf40d317cfb30cc735d2c
N/A
https://git.kernel.org/stable/c/0b038c0be6827dd2dbb1ce4f8d92d97c80cbe9cc
N/A
https://git.kernel.org/stable/c/11a93180a70bb3095a9bd80d113d9277e30d9959
N/A
https://git.kernel.org/stable/c/f57b61624c86ef8f87f6e6b7dd0755de03d90e89
N/A
https://git.kernel.org/stable/c/011a0502801c8536f64141a2b61362c14f456544
N/A
Hyperlink: https://git.kernel.org/stable/c/d3e535533767c85788529e626478718b7e95a59f
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/3b5a754ec86bc6064af9aca76eb191c2405e6b0c
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/a785c4e2a999c2d51dfcf40d317cfb30cc735d2c
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/0b038c0be6827dd2dbb1ce4f8d92d97c80cbe9cc
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/11a93180a70bb3095a9bd80d113d9277e30d9959
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/f57b61624c86ef8f87f6e6b7dd0755de03d90e89
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/011a0502801c8536f64141a2b61362c14f456544
Resource: N/A
Details not found