See https://downfall.page/.
This is fixed in: * sys-firmware/intel-microcode-20230808_p20230804 * linux-4.14.321 * linux-4.19.290 * linux-5.4.252 * linux-5.10.189 * linux-5.15.125 * linux-6.1.44 * linux-6.4.9 Note that each of these linux-* releases has a warning from Greg (https://lwn.net/Articles/940798): >Note, PLEASE TEST this kernel if you are on the [...] tree before using it in >a real workload. This was a quick release due to the obvious security fixes in >it, and as such, it has not had very much testing "in the wild". Please let us >know of any problems seen. Also note that the user/kernel api for the new >security mitigations might be changing over time, so do not get used to them >being fixed in stone just yet. ([...] because it's the same for each respective version, the LWN article just says 6.4.x, don't get the wrong impression).
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=e1f208e1fa8c030d1bf9571b36e67d552325c73b commit e1f208e1fa8c030d1bf9571b36e67d552325c73b Author: Sam James <sam@gentoo.org> AuthorDate: 2023-08-09 03:14:09 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2023-08-09 03:20:15 +0000 sys-firmware/intel-microcode: stabilize 20230808_p20230804 for amd64, x86 Bug: https://bugs.gentoo.org/911939 Signed-off-by: Sam James <sam@gentoo.org> sys-firmware/intel-microcode/intel-microcode-20230808_p20230804.ebuild | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=1da5599076d2ea568df044227dfc9047d2cecb63 commit 1da5599076d2ea568df044227dfc9047d2cecb63 Author: Sam James <sam@gentoo.org> AuthorDate: 2023-08-26 23:01:44 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2023-08-26 23:02:49 +0000 sys-devel/gcc: add 13.2.1_p20230826 Note that I plan on keywording this round of gcc snapshots shortly because it's: 1) a bit overdue, but 2) it contains mitigations for the performance loss from the recent Intel vulnerabilities. Bug: https://bugs.gentoo.org/911939 Signed-off-by: Sam James <sam@gentoo.org> sys-devel/gcc/Manifest | 1 + sys-devel/gcc/gcc-13.2.1_p20230826.ebuild | 65 +++++++++++++++++++++++++++++++ 2 files changed, 66 insertions(+)
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=e18f29033d1c2d1f6f2ba443e59d3349b60598a5 commit e18f29033d1c2d1f6f2ba443e59d3349b60598a5 Author: Sam James <sam@gentoo.org> AuthorDate: 2023-08-26 23:28:08 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2023-08-26 23:28:43 +0000 sys-devel/gcc: keyword 13.2.1_p20230826 Bug: https://bugs.gentoo.org/911939 Signed-off-by: Sam James <sam@gentoo.org> sys-devel/gcc/gcc-13.2.1_p20230826.ebuild | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=28549e0b4f6c5da1319413b48d53a4b13890603a commit 28549e0b4f6c5da1319413b48d53a4b13890603a Author: Sam James <sam@gentoo.org> AuthorDate: 2023-08-26 23:27:53 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2023-08-26 23:28:17 +0000 sys-devel/gcc: keyword 12.3.1_p20230825 Bug: https://bugs.gentoo.org/911939 Bug: https://bugs.gentoo.org/912795 Signed-off-by: Sam James <sam@gentoo.org> sys-devel/gcc/gcc-12.3.1_p20230825.ebuild | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=e923f99b4ad2915b0305a76e2f48cb4dc5fa2c86 commit e923f99b4ad2915b0305a76e2f48cb4dc5fa2c86 Author: Sam James <sam@gentoo.org> AuthorDate: 2023-08-26 23:27:37 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2023-08-26 23:27:37 +0000 sys-devel/gcc: keyword 11.4.1_p20230824 Bug: https://bugs.gentoo.org/911939 Signed-off-by: Sam James <sam@gentoo.org> sys-devel/gcc/gcc-11.4.1_p20230824.ebuild | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)