CVE-2023-38409: Race Condition
First published: Mon Jul 17 2023(Updated: )
An issue was discovered in set_con2fb_map in drivers/video/fbdev/core/fbcon.c in the Linux kernel before 6.2.12. Because an assignment occurs only for the first vc, the fbcon_registered_fb and fbcon_display arrays can be desynchronized in fbcon_mode_deleted (the con2fb_map points at the old fb_info).
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <6.2.12 | |
| redhat/Kernel | <6.3 | 6.3 |
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Reference Links
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=fffb0b52d5258554c645c966c6cbef7de50b851d
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.12
- https://exchange.xforce.ibmcloud.com/vulnerabilities/261031
- https://www.ibm.com/support/pages/node/7144861 (Advisory)
- https://access.redhat.com/errata/RHSA-2023:7539
- https://access.redhat.com/errata/RHSA-2024:0461
- https://access.redhat.com/errata/RHSA-2024:0439
- https://access.redhat.com/errata/RHSA-2024:0448
- https://access.redhat.com/errata/RHSA-2024:0412
- https://access.redhat.com/errata/RHSA-2024:0563
- https://access.redhat.com/errata/RHSA-2024:0562
- https://access.redhat.com/errata/RHSA-2024:1250
- https://access.redhat.com/errata/RHSA-2024:1249
- https://access.redhat.com/errata/RHSA-2024:1268
- https://access.redhat.com/errata/RHSA-2024:1269
- https://access.redhat.com/errata/RHSA-2024:1306
- https://access.redhat.com/errata/RHSA-2024:1332
- https://access.redhat.com/errata/RHSA-2024:2950
- https://access.redhat.com/errata/RHSA-2024:3138
- https://bugzilla.redhat.com/show_bug.cgi?id=2230042
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