In the Linux kernel, the following vulnerability has been resolved:
media: bttv: fix use after free error due to btv->timeout timer
There may be some a race condition between timer function
bttv_irq_timeout and bttv_remove. The timer is setup in
probe and there is no timer_delete operation in remove
function. When it hit kfree btv, the function might still be
invoked, which will cause use after free bug.
This bug is found by static analysis, it may be false positive.
Fix it by adding del_timer_sync invoking to the remove function.
cpu0 cpu1
bttv_probe
->timer_setup
->bttv_set_dma
->mod_timer;
bttv_remove
->kfree(btv);
->bttv_irq_timeout
->USE btv
References
Configurations
Configuration 1 (hide)
|
History
21 Nov 2024, 08:40
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/b35fdade92c5058a5e727e233fe263b828de2c9a - Patch, Mailing List | |
| References | () https://git.kernel.org/stable/c/2f3d9198cdae1cb079ec8652f4defacd481eab2b - Patch, Mailing List | |
| References | () https://git.kernel.org/stable/c/847599fffa528b2cdec4e21b6bf7586dad982132 - Patch, Mailing List | |
| References | () https://git.kernel.org/stable/c/1871014d6ef4812ad11ef7d838d73ce09d632267 - Patch, Mailing List | |
| References | () https://git.kernel.org/stable/c/51c94256a83fe4e17406c66ff3e1ad7d242d8574 - Patch, Mailing List | |
| References | () https://git.kernel.org/stable/c/20568d06f6069cb835e05eed432edf962645d226 - Patch, Mailing List | |
| References | () https://git.kernel.org/stable/c/bd5b50b329e850d467e7bcc07b2b6bde3752fbda - Patch, Mailing List | |
| References | () https://git.kernel.org/stable/c/bbc3b8dd2cb7817e703f112d988e4f4728f0f2a9 - Patch, Mailing List | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.0 |
21 May 2024, 16:53
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-05-21 16:15
Updated : 2024-11-21 08:40
NVD link : CVE-2023-52847
Mitre link : CVE-2023-52847
JSON object : View
Products Affected
linux
- linux_kernel
CWE
No CWE.