CVE-2024-35815
Published: May 18, 2024Last modified: May 18, 2024
Description
In the Linux kernel, the following vulnerability has been resolved: fs/aio: Check IOCB_AIO_RW before the struct aio_kiocb conversion The first kiocb_set_cancel_fn() argument may point at a struct kiocb that is not embedded inside struct aio_kiocb. With the current code, depending on the compiler, the req->ki_ctx read happens either before the IOCB_AIO_RW test or after that test. Move the req->ki_ctx read such that it is guaranteed that the IOCB_AIO_RW test happens first.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.33-r0) |
| 25 LTS | linux-lts | Not affected (6.6.89-r0) | |
| Stream | linux-lts | Not affected (6.1.33-r0) |
References
- https://git.kernel.org/stable/c/10ca82aff58434e122c7c757cf0497c335f993f3
- https://git.kernel.org/stable/c/18d5fc3c16cc317bd0e5f5dabe0660df415cadb7
- https://git.kernel.org/stable/c/396dbbc18963648e9d1a4edbb55cfe08fa374d50
- https://git.kernel.org/stable/c/5c43d0041e3a05c6c41c318b759fff16d2384596
- https://git.kernel.org/stable/c/94eb0293703ced580f05dfbe5a57da5931e9aee2
- https://git.kernel.org/stable/c/961ebd120565cb60cebe21cb634fbc456022db4a
- https://git.kernel.org/stable/c/a71cba07783abc76b547568b6452cd1dd9981410
- https://git.kernel.org/stable/c/c01ed748847fe8b810d86efc229b9e6c7fafa01e
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html