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tracing/probes: Fix double addition of offset for @+FOFFSET

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Since commit 533059281e ("tracing: probeevent: Introduce new argument
 fetching code") wrongly use @offset local variable during the parsing,
the offset value is added twice when dereferencing.
Reset the @offset after setting it in FETCH_OP_FOFFS.

Link: https://lore.kernel.org/all/178217905962.643090.1978577464942171332.stgit@devnote2/

Fixes: 533059281e ("tracing: probeevent: Introduce new argument fetching code")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Cc: stable@vger.kernel.org
This commit is contained in:
Masami Hiramatsu (Google) 2026-06-25 08:34:47 +09:00
parent 206b25c090
commit 9a667b7750
1 changed files with 1 additions and 0 deletions
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kernel/trace/trace_probe.c
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@ -1241,6 +1241,7 @@ parse_probe_arg(char *arg, const struct fetch_type *type,
code->op = FETCH_OP_FOFFS;
code->immediate = (unsigned long)offset; // imm64?
offset = 0;
} else {
/* uprobes don't support symbols */
if (!(ctx->flags & TPARG_FL_KERNEL)) {