Description
drivers/media/usb/dvb-usb-v2/dvb_usb_core.c in the Linux kernel 4.9.x and 4.10.x before 4.10.12 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 | 4.9.25-1 | — |
| Debian 13 | linux | 4.9.25-1 | — |
| Debian 12 | linux | 4.9.25-1 | — |
| Debian 8 | linux | 3.16.43-2+deb8u1 | DSA-3886-1 |
Advisories 1
- DSA-3886-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- 97975 vdb-entry
- [oss-security] 20170416 Silently (or obliviously) partially-fixed CONFIG_STRICT_DEVMEM bypass mailing-list
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=005145378c9ad7575a01b6ce1ba118fb427f583a
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.12
- DSA-3886 vendor-advisory
- https://github.com/torvalds/linux/commit/005145378c9ad7575a01b6ce1ba118fb427f583a