| Name | CVE-2015-2672 |
| Description | The xsave/xrstor implementation in arch/x86/include/asm/xsave.h in the Linux kernel before 3.19.2 creates certain .altinstr_replacement pointers and consequently does not provide any protection against instruction faulting, which allows local users to cause a denial of service (panic) by triggering a fault, as demonstrated by an unaligned memory operand or a non-canonical address memory operand. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | jessie, jessie (lts) | 3.16.84-1 | fixed |
| stretch (security) | 4.9.320-2 | fixed | |
| stretch (lts), stretch | 4.9.320-3 | fixed | |
| buster (security), buster, buster (lts) | 4.19.316-1 | fixed | |
| bullseye | 5.10.223-1 | fixed | |
| bullseye (security) | 5.10.226-1 | fixed | |
| bookworm | 6.1.115-1 | fixed | |
| bookworm (security) | 6.1.112-1 | fixed | |
| trixie | 6.11.7-1 | fixed | |
| sid | 6.11.9-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | (unstable) | (not affected) | |||
| linux-2.6 | source | (unstable) | (not affected) |
- linux <not-affected> (Vulnerable code not present)
- linux-2.6 <not-affected> (Vulnerable code not present)
Introduced by https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f31a9f7c71691569359fa7fb8b0acaa44bce0324 (v3.17-rc1)
Fixed by https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit?id=06c8173eb92bbfc03a0fe8bb64315857d0badd06 (v4.0-rc3)
https://www.openwall.com/lists/oss-security/2015/03/18/6