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| author | Nathan Chancellor <nathan@kernel.org> | 2022-12-14 16:26:03 -0700 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2022-12-14 16:05:36 -0800 |
| commit | d6a9fb87e9d18f3394a9845546bbe868efdccfd2 (patch) | |
| tree | d5c94c1a1096489916a2f52f9edc06410c258588 /kernel/exit.c | |
| parent | f68022ae0aeb0803450e05abc0e984027c33ef1b (diff) | |
| download | linux-stable-d6a9fb87e9d18f3394a9845546bbe868efdccfd2.tar.gz linux-stable-d6a9fb87e9d18f3394a9845546bbe868efdccfd2.tar.bz2 linux-stable-d6a9fb87e9d18f3394a9845546bbe868efdccfd2.zip | |
security: Restrict CONFIG_ZERO_CALL_USED_REGS to gcc or clang > 15.0.6
A bad bug in clang's implementation of -fzero-call-used-regs can result
in NULL pointer dereferences (see the links above the check for more
information). Restrict CONFIG_CC_HAS_ZERO_CALL_USED_REGS to either a
supported GCC version or a clang newer than 15.0.6, which will catch
both a theoretical 15.0.7 and the upcoming 16.0.0, which will both have
the bug fixed.
Cc: stable@vger.kernel.org # v5.15+
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20221214232602.4118147-1-nathan@kernel.org
Diffstat (limited to 'kernel/exit.c')
0 files changed, 0 insertions, 0 deletions