CVE-2022-50404
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved:
fbdev: fbcon: release buffer when fbcon_do_set_font() failed
syzbot is reporting memory leak at fbcon_do_set_font() [1], for commit a5a923038d70 ("fbdev: fbcon: Properly revert changes when vc_resize() failed") missed that the buffer might be newly allocated by fbcon_set_font().
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 868749a7456dc48e93887a8474194e2ee6d6c21f < 5a341810a22e51c3a7a108f7896b5fd58d44d127 | affected |
| Linux | Linux | ebd6f886aa2447fcfcdce5450c9e1028e1d681bb < 88ec6d11052da527eb9268831e7a9bc5bbad02f6 | affected |
| Linux | Linux | a5a923038d70d2d4a86cb4e3f32625a5ee6e7e24 < 06926607b9fddf7ce8017493899ce6eb7e79a123 | affected |
| Linux | Linux | a5a923038d70d2d4a86cb4e3f32625a5ee6e7e24 < a609bfc1e644a8467cb31945ed1488374ebdc013 | affected |
| Linux | Linux | a5a923038d70d2d4a86cb4e3f32625a5ee6e7e24 < 3c3bfb8586f848317ceba5d777e11204ba3e5758 | affected |
| Linux | Linux | f08ccb792d3eaf1dc62d8cbf6a30d6522329f660 | affected |
| Linux | Linux | 5.15.64 < 5.15.86 | affected |
| Linux | Linux | 5.19.6 < 5.20 | affected |
| Linux | Linux | 6.0 | affected |
| Linux | Linux | 0 < 6.0 | unaffected |
| Linux | Linux | 5.15.86 <= 5.15.* | unaffected |
| Linux | Linux | 6.0.16 <= 6.0.* | unaffected |
| Linux | Linux | 6.1.2 <= 6.1.* | unaffected |
| Linux | Linux | 6.2 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://git.kernel.org/stable/c/5a341810a22e51c3a7a108f7896b5fd58d44d127
- https://git.kernel.org/stable/c/88ec6d11052da527eb9268831e7a9bc5bbad02f6
- https://git.kernel.org/stable/c/06926607b9fddf7ce8017493899ce6eb7e79a123
- https://git.kernel.org/stable/c/a609bfc1e644a8467cb31945ed1488374ebdc013
- https://git.kernel.org/stable/c/3c3bfb8586f848317ceba5d777e11204ba3e5758
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