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This project will be discontinued after December 13, 2021. [more]
2018-08-20
The spectre_v2_select_mitigation function in arch/x86/kernel/cpu/bugs.c in the Linux kernel before 4.18.1 does not always fill RSB upon a context switch, which makes it easier for attackers to conduct userspace-userspace spectreRSB attacks.
Products | Ubuntu_linux, Debian_linux, Linux_kernel |
Type | 7PK - Security Features (CWE-254) |
First patch |
https://github.com/torvalds/linux/commit/fdf82a7856b32d905c39afc85e34364491e46346 |
Relevant file/s | ./arch/x86/kernel/cpu/bugs.c (modified, +7, -31) |
Links |
• https://usn.ubuntu.com/3777-3/
• https://usn.ubuntu.com/3776-2/ • https://usn.ubuntu.com/3776-1/ • https://www.debian.org/security/2018/dsa-4308 • https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html
• https://usn.ubuntu.com/3777-1/
• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1 • https://usn.ubuntu.com/3775-2/ • https://usn.ubuntu.com/3775-1/ • https://usn.ubuntu.com/3777-2/ • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fdf82a7856b32d905c39afc85e34364491e46346 |
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