Description
drivers/media/usb/dvb-usb/dw2102.c in the Linux kernel 4.9.x and 4.10.x before 4.10.4 interacts incorrectly with the CONFIG_VMAP_STACK option, which allows local users to cause a denial of service (system crash or memory corruption) or possibly have unspecified other impact by leveraging use of more than one virtual page for a DMA scatterlist.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 4.9.16-1 | — |
| Debian 13 | linux | 4.9.16-1 | — |
| Debian 12 | linux | 4.9.16-1 | — |
References
- 97973 vdb-entry
- https://github.com/torvalds/linux/commit/606142af57dad981b78707234cfbd15f9f7b7125
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.4
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=606142af57dad981b78707234cfbd15f9f7b7125
- [oss-security] 20170416 Silently (or obliviously) partially-fixed CONFIG_STRICT_DEVMEM bypass mailing-list