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| author | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2019-08-23 12:35:39 +0300 |
|---|---|---|
| committer | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2019-08-23 12:35:39 +0300 |
| commit | 6f50fa2a6f1395ad5f59ce7b87730f1f3ea19d76 (patch) | |
| tree | f826145c5bf9c502c033e7b67bcefc30eb0f9eee /kernel/stacktrace.c | |
| parent | 5b6cc1277a0536dae20f37d531f29b3416cee670 (diff) | |
| parent | 15d90b242290f228166ea79ee1cc2db6b31a2143 (diff) | |
| download | linux-6f50fa2a6f1395ad5f59ce7b87730f1f3ea19d76.tar.xz | |
Merge branch 'master' into for-5.4/logitech
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Diffstat (limited to 'kernel/stacktrace.c')
| -rw-r--r-- | kernel/stacktrace.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c index e6a02b274b73..f5440abb7532 100644 --- a/kernel/stacktrace.c +++ b/kernel/stacktrace.c @@ -226,12 +226,17 @@ unsigned int stack_trace_save_user(unsigned long *store, unsigned int size) .store = store, .size = size, }; + mm_segment_t fs; /* Trace user stack if not a kernel thread */ if (current->flags & PF_KTHREAD) return 0; + fs = get_fs(); + set_fs(USER_DS); arch_stack_walk_user(consume_entry, &c, task_pt_regs(current)); + set_fs(fs); + return c.len; } #endif |