CVE-2023-40791
Published: October 16, 2023Last modified: October 16, 2023
Description
extract_user_to_sg in lib/scatterlist.c in the Linux kernel before 6.4.12 fails to unpin pages in a certain situation, as demonstrated by a WARNING for try_grab_page.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.3 |
| Attack Vector | LOCAL |
| Attack complexity | HIGH |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | Stream | linux-lts | Not affected (6.1.50-r0) |
References
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.12
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f443fd5af5dbd531f880d3645d5dd36976cf087f
- https://lkml.org/lkml/2023/8/3/323
- https://lore.kernel.org/linux-crypto/20571.1690369076%40warthog.procyon.org.uk/
- https://lore.kernel.org/linux-crypto/[email protected]/
- https://security.netapp.com/advisory/ntap-20231110-0009/