aboutsummaryrefslogtreecommitdiff
path: root/tools/perf/scripts/python/bin
diff options
context:
space:
mode:
authorEiichi Tsukata <[email protected]>2019-07-11 11:35:01 +0900
committerThomas Gleixner <[email protected]>2019-07-11 08:22:03 +0200
commitcbf5b73d162b22e044fe0b7d51dcaa33be065253 (patch)
treef4baca1e7a79277c48261f22285361808633911b /tools/perf/scripts/python/bin
parent7652ac92018536eb807b6c2130100c85f1ba7e3b (diff)
x86/stacktrace: Prevent infinite loop in arch_stack_walk_user()
arch_stack_walk_user() checks `if (fp == frame.next_fp)` to prevent a infinite loop by self reference but it's not enogh for circular reference. Once a lack of return address is found, there is no point to continue the loop, so break out. Fixes: 02b67518e2b1 ("tracing: add support for userspace stacktraces in tracing/iter_ctrl") Signed-off-by: Eiichi Tsukata <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Acked-by: Linus Torvalds <[email protected]> Link: https://lkml.kernel.org/r/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions