From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1AFE6FEE4F2 for ; Sat, 28 Feb 2026 17:48:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=4PFzA6x7XpGtL5gGAe9ZkCbhjFM0+Eu/npdy+Yhrt1I=; b=gc0txQb8OVjP8KZ+xVIsM2wkpm 2nxXBpBBvBt3cxYfSope3QDKxVCUf57pyoqjaD13zzeWjqrOilqsdoRlR3CKfWCFh+m3oQGyvfp7J BB3/WSqcW7iUxfYv1M6pvvSztq2QnlZAQoDOYpIxNSngPjAA7HcTFB0Hm3vOO7TCG6Ay3KGTikW2j Zo/fdhZLMzyW8SHS/lIgIiuThpHqBbwX/bxDzrLhsS42RTYGkEy2Ding4gs315GG46sSd65n3E+Eq MCoOu7z0DRbmeuen+YncAh2YmhDbHSVhuika6ElRnod+xe21++AW4wRa+BernbV805oCnoab6X0N4 272VAfPg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vwOQJ-0000000A7H4-0c68; Sat, 28 Feb 2026 17:48:15 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vwOQI-0000000A7Gu-11dV; Sat, 28 Feb 2026 17:48:14 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 5A97060054; Sat, 28 Feb 2026 17:48:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8689DC116D0; Sat, 28 Feb 2026 17:48:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772300892; bh=GPuD30vv6sqzucOUBpi9B4iP3HDC27EbjrmXMtZrSlM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Z2mgJSbqwaIzBUJt2LWHO7DtyBBo6dByNe0+cm5mtPjD5SjBJgUbmpXTc2k1VzIlI d9hm8GWkBdswB5dNllvs4U8G6OzMk5yVlvsL1ulYwew8QQZWh3npCAXZRUB/RDA0cy 7CV1tosjl3Xx2sKL8XbyeNG6Ihupamt1VWUP/EtfcktCbyMdn0jEBndwexVUAGp8jU +Slna/T8En3j6/M/AuZR6CVTbUiGyNzZ681qDQwXbjAasALDVfmfRx9YEAdoLchTmG xHIBKqER452Lx0N5zmJMizP+HaukA10kZvBZ5uq9YksmaKtJa2XpeJntxVDzel+SHi 9QWWBncCev2Zw== From: Sasha Levin To: patches@lists.linux.dev Cc: Ian Rogers , James Clark , Aditya Bodkhe , Adrian Hunter , Albert Ou , Alexander Shishkin , Alexandre Ghiti , Athira Rajeev , Bill Wendling , "Dr. David Alan Gilbert" , Guo Ren , Howard Chu , Ingo Molnar , Jiri Olsa , John Garry , Julia Lawall , Justin Stitt , =?UTF-8?q?Krzysztof=20=C5=81opatowski?= , Leo Yan , linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-riscv@lists.infradead.org, Namhyung Kim , Nathan Chancellor , Nick Desaulniers , Palmer Dabbelt , Paul Walmsley , Peter Zijlstra , Sergei Trofimovich , Shimin Guo , Suchit Karunakaran , Thomas Falcon , Tianyou Li , Will Deacon , Zecheng Li , Arnaldo Carvalho de Melo , Sasha Levin Subject: [PATCH 6.18 011/752] perf annotate: Fix args leak of map_symbol Date: Sat, 28 Feb 2026 12:35:22 -0500 Message-ID: <20260228174750.1542406-11-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228174750.1542406-1-sashal@kernel.org> References: <20260228174750.1542406-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Ian Rogers [ Upstream commit 00419892bac28bf148450d762bbff990a6bd5494 ] map_symbol__exit() needs calling on an annotate_args.ms, however, rather than introduce proper reference count handling to symbol__annotate() just switch to passing the map_symbol pointer parameter around, making the puts the caller's responsibility. Fix a number of cases to ensure the map in a map_symbol has a reference count increment and add the then necessary map_symbol_exits. Fixes: 56e144fe98260a0f ("perf mem_info: Add and use map_symbol__exit and addr_map_symbol__exit") Reviewed-by: James Clark Signed-off-by: Ian Rogers Cc: Aditya Bodkhe Cc: Adrian Hunter Cc: Albert Ou Cc: Alexander Shishkin Cc: Alexandre Ghiti Cc: Athira Rajeev Cc: Bill Wendling Cc: Dr. David Alan Gilbert Cc: Guo Ren Cc: Howard Chu Cc: Ian Rogers Cc: Ingo Molnar Cc: Jiri Olsa Cc: John Garry Cc: Julia Lawall Cc: Justin Stitt Cc: Krzysztof Łopatowski Cc: Leo Yan Cc: linux-arm-kernel@lists.infradead.org Cc: linux-csky@vger.kernel.org Cc: linux-riscv@lists.infradead.org Cc: Namhyung Kim Cc: Nathan Chancellor Cc: Nick Desaulniers Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: Peter Zijlstra Cc: Sergei Trofimovich Cc: Shimin Guo Cc: Suchit Karunakaran Cc: Thomas Falcon Cc: Tianyou Li Cc: Will Deacon Cc: Zecheng Li Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin --- .../arch/loongarch/annotate/instructions.c | 14 ++++---- tools/perf/arch/s390/annotate/instructions.c | 11 +++--- tools/perf/util/annotate.c | 2 +- tools/perf/util/capstone.c | 14 ++++---- tools/perf/util/disasm.c | 36 ++++++++++--------- tools/perf/util/disasm.h | 2 +- tools/perf/util/llvm.c | 6 ++-- 7 files changed, 47 insertions(+), 38 deletions(-) diff --git a/tools/perf/arch/loongarch/annotate/instructions.c b/tools/perf/arch/loongarch/annotate/instructions.c index 70262d5f14442..1c3abb43c8d72 100644 --- a/tools/perf/arch/loongarch/annotate/instructions.c +++ b/tools/perf/arch/loongarch/annotate/instructions.c @@ -10,9 +10,7 @@ static int loongarch_call__parse(struct arch *arch, struct ins_operands *ops, st { char *c, *endptr, *tok, *name; struct map *map = ms->map; - struct addr_map_symbol target = { - .ms = { .map = map, }, - }; + struct addr_map_symbol target; c = strchr(ops->raw, '#'); if (c++ == NULL) @@ -38,12 +36,16 @@ static int loongarch_call__parse(struct arch *arch, struct ins_operands *ops, st if (ops->target.name == NULL) return -1; - target.addr = map__objdump_2mem(map, ops->target.addr); + target = (struct addr_map_symbol) { + .ms = { .map = map__get(map), }, + .addr = map__objdump_2mem(map, ops->target.addr), + }; if (maps__find_ams(ms->maps, &target) == 0 && map__rip_2objdump(target.ms.map, map__map_ip(target.ms.map, target.addr)) == ops->target.addr) ops->target.sym = target.ms.sym; + addr_map_symbol__exit(&target); return 0; } @@ -58,7 +60,7 @@ static int loongarch_jump__parse(struct arch *arch, struct ins_operands *ops, st struct map *map = ms->map; struct symbol *sym = ms->sym; struct addr_map_symbol target = { - .ms = { .map = map, }, + .ms = { .map = map__get(map), }, }; const char *c = strchr(ops->raw, '#'); u64 start, end; @@ -90,7 +92,7 @@ static int loongarch_jump__parse(struct arch *arch, struct ins_operands *ops, st } else { ops->target.offset_avail = false; } - + addr_map_symbol__exit(&target); return 0; } diff --git a/tools/perf/arch/s390/annotate/instructions.c b/tools/perf/arch/s390/annotate/instructions.c index c61193f1e0964..626e6d2cbc81a 100644 --- a/tools/perf/arch/s390/annotate/instructions.c +++ b/tools/perf/arch/s390/annotate/instructions.c @@ -6,9 +6,7 @@ static int s390_call__parse(struct arch *arch, struct ins_operands *ops, { char *endptr, *tok, *name; struct map *map = ms->map; - struct addr_map_symbol target = { - .ms = { .map = map, }, - }; + struct addr_map_symbol target; tok = strchr(ops->raw, ','); if (!tok) @@ -36,12 +34,17 @@ static int s390_call__parse(struct arch *arch, struct ins_operands *ops, if (ops->target.name == NULL) return -1; - target.addr = map__objdump_2mem(map, ops->target.addr); + + target = (struct addr_map_symbol) { + .ms = { .map = map__get(map), }, + .addr = map__objdump_2mem(map, ops->target.addr), + }; if (maps__find_ams(ms->maps, &target) == 0 && map__rip_2objdump(target.ms.map, map__map_ip(target.ms.map, target.addr)) == ops->target.addr) ops->target.sym = target.ms.sym; + addr_map_symbol__exit(&target); return 0; } diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index 1d6900033b3a0..dc80d922f450d 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -1031,7 +1031,7 @@ int symbol__annotate(struct map_symbol *ms, struct evsel *evsel, return 0; args.arch = arch; - args.ms = *ms; + args.ms = ms; if (notes->src == NULL) { notes->src = annotated_source__new(); diff --git a/tools/perf/util/capstone.c b/tools/perf/util/capstone.c index be5fd44b1f9dc..2c7feab61b7bf 100644 --- a/tools/perf/util/capstone.c +++ b/tools/perf/util/capstone.c @@ -143,7 +143,7 @@ static void print_capstone_detail(cs_insn *insn, char *buf, size_t len, struct annotate_args *args, u64 addr) { int i; - struct map *map = args->ms.map; + struct map *map = args->ms->map; struct symbol *sym; /* TODO: support more architectures */ @@ -222,7 +222,7 @@ int symbol__disassemble_capstone(const char *filename __maybe_unused, { #ifdef HAVE_LIBCAPSTONE_SUPPORT struct annotation *notes = symbol__annotation(sym); - struct map *map = args->ms.map; + struct map *map = args->ms->map; struct dso *dso = map__dso(map); u64 start = map__rip_2objdump(map, sym->start); u64 offset; @@ -256,7 +256,7 @@ int symbol__disassemble_capstone(const char *filename __maybe_unused, args->line = disasm_buf; args->line_nr = 0; args->fileloc = NULL; - args->ms.sym = sym; + args->ms->sym = sym; dl = disasm_line__new(args); if (dl == NULL) @@ -268,7 +268,7 @@ int symbol__disassemble_capstone(const char *filename __maybe_unused, !strcmp(args->options->disassembler_style, "att")) disassembler_style = true; - if (capstone_init(maps__machine(args->ms.maps), &handle, is_64bit, disassembler_style) < 0) + if (capstone_init(maps__machine(args->ms->maps), &handle, is_64bit, disassembler_style) < 0) goto err; needs_cs_close = true; @@ -345,7 +345,7 @@ int symbol__disassemble_capstone_powerpc(const char *filename __maybe_unused, { #ifdef HAVE_LIBCAPSTONE_SUPPORT struct annotation *notes = symbol__annotation(sym); - struct map *map = args->ms.map; + struct map *map = args->ms->map; struct dso *dso = map__dso(map); struct nscookie nsc; u64 start = map__rip_2objdump(map, sym->start); @@ -382,7 +382,7 @@ int symbol__disassemble_capstone_powerpc(const char *filename __maybe_unused, !strcmp(args->options->disassembler_style, "att")) disassembler_style = true; - if (capstone_init(maps__machine(args->ms.maps), &handle, is_64bit, disassembler_style) < 0) + if (capstone_init(maps__machine(args->ms->maps), &handle, is_64bit, disassembler_style) < 0) goto err; needs_cs_close = true; @@ -408,7 +408,7 @@ int symbol__disassemble_capstone_powerpc(const char *filename __maybe_unused, args->line = disasm_buf; args->line_nr = 0; args->fileloc = NULL; - args->ms.sym = sym; + args->ms->sym = sym; dl = disasm_line__new(args); if (dl == NULL) diff --git a/tools/perf/util/disasm.c b/tools/perf/util/disasm.c index 50b9433f3f8e6..924429142631a 100644 --- a/tools/perf/util/disasm.c +++ b/tools/perf/util/disasm.c @@ -269,9 +269,7 @@ static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_s { char *endptr, *tok, *name; struct map *map = ms->map; - struct addr_map_symbol target = { - .ms = { .map = map, }, - }; + struct addr_map_symbol target; ops->target.addr = strtoull(ops->raw, &endptr, 16); @@ -296,12 +294,16 @@ static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_s if (ops->target.name == NULL) return -1; find_target: - target.addr = map__objdump_2mem(map, ops->target.addr); + target = (struct addr_map_symbol) { + .ms = { .map = map__get(map), }, + .addr = map__objdump_2mem(map, ops->target.addr), + }; if (maps__find_ams(ms->maps, &target) == 0 && map__rip_2objdump(target.ms.map, map__map_ip(target.ms.map, target.addr)) == ops->target.addr) ops->target.sym = target.ms.sym; + addr_map_symbol__exit(&target); return 0; indirect_call: @@ -366,7 +368,7 @@ static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_s struct map *map = ms->map; struct symbol *sym = ms->sym; struct addr_map_symbol target = { - .ms = { .map = map, }, + .ms = { .map = map__get(map), }, }; const char *c = strchr(ops->raw, ','); u64 start, end; @@ -440,7 +442,7 @@ static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_s } else { ops->target.offset_avail = false; } - + addr_map_symbol__exit(&target); return 0; } @@ -1046,7 +1048,7 @@ static size_t disasm_line_size(int nr) struct disasm_line *disasm_line__new(struct annotate_args *args) { struct disasm_line *dl = NULL; - struct annotation *notes = symbol__annotation(args->ms.sym); + struct annotation *notes = symbol__annotation(args->ms->sym); int nr = notes->src->nr_events; dl = zalloc(disasm_line_size(nr)); @@ -1064,7 +1066,7 @@ struct disasm_line *disasm_line__new(struct annotate_args *args) } else if (disasm_line__parse(dl->al.line, &dl->ins.name, &dl->ops.raw) < 0) goto out_free_line; - disasm_line__init_ins(dl, args->arch, &args->ms); + disasm_line__init_ins(dl, args->arch, args->ms); } return dl; @@ -1119,7 +1121,7 @@ static int symbol__parse_objdump_line(struct symbol *sym, struct annotate_args *args, char *parsed_line, int *line_nr, char **fileloc) { - struct map *map = args->ms.map; + struct map *map = args->ms->map; struct annotation *notes = symbol__annotation(sym); struct disasm_line *dl; char *tmp; @@ -1151,7 +1153,7 @@ static int symbol__parse_objdump_line(struct symbol *sym, args->line = parsed_line; args->line_nr = *line_nr; args->fileloc = *fileloc; - args->ms.sym = sym; + args->ms->sym = sym; dl = disasm_line__new(args); (*line_nr)++; @@ -1169,12 +1171,14 @@ static int symbol__parse_objdump_line(struct symbol *sym, if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.sym) { struct addr_map_symbol target = { .addr = dl->ops.target.addr, - .ms = { .map = map, }, + .ms = { .map = map__get(map), }, }; - if (!maps__find_ams(args->ms.maps, &target) && + if (!maps__find_ams(args->ms->maps, &target) && target.ms.sym->start == target.al_addr) dl->ops.target.sym = target.ms.sym; + + addr_map_symbol__exit(&target); } annotation_line__add(&dl->al, ¬es->src->source); @@ -1338,7 +1342,7 @@ static int symbol__disassemble_raw(char *filename, struct symbol *sym, struct annotate_args *args) { struct annotation *notes = symbol__annotation(sym); - struct map *map = args->ms.map; + struct map *map = args->ms->map; struct dso *dso = map__dso(map); u64 start = map__rip_2objdump(map, sym->start); u64 end = map__rip_2objdump(map, sym->end); @@ -1375,7 +1379,7 @@ static int symbol__disassemble_raw(char *filename, struct symbol *sym, args->line = disasm_buf; args->line_nr = 0; args->fileloc = NULL; - args->ms.sym = sym; + args->ms->sym = sym; dl = disasm_line__new(args); if (dl == NULL) @@ -1501,7 +1505,7 @@ static int symbol__disassemble_objdump(const char *filename, struct symbol *sym, struct annotate_args *args) { struct annotation_options *opts = &annotate_opts; - struct map *map = args->ms.map; + struct map *map = args->ms->map; struct dso *dso = map__dso(map); char *command; FILE *file; @@ -1644,7 +1648,7 @@ static int symbol__disassemble_objdump(const char *filename, struct symbol *sym, int symbol__disassemble(struct symbol *sym, struct annotate_args *args) { struct annotation_options *options = args->options; - struct map *map = args->ms.map; + struct map *map = args->ms->map; struct dso *dso = map__dso(map); char symfs_filename[PATH_MAX]; bool delete_extract = false; diff --git a/tools/perf/util/disasm.h b/tools/perf/util/disasm.h index d2cb555e4a3be..a3ea9d6762816 100644 --- a/tools/perf/util/disasm.h +++ b/tools/perf/util/disasm.h @@ -97,7 +97,7 @@ struct ins_ops { struct annotate_args { struct arch *arch; - struct map_symbol ms; + struct map_symbol *ms; struct annotation_options *options; s64 offset; char *line; diff --git a/tools/perf/util/llvm.c b/tools/perf/util/llvm.c index 2ebf1f5f65bf7..4ada9a10bd93f 100644 --- a/tools/perf/util/llvm.c +++ b/tools/perf/util/llvm.c @@ -118,7 +118,7 @@ int symbol__disassemble_llvm(const char *filename, struct symbol *sym, { #ifdef HAVE_LIBLLVM_SUPPORT struct annotation *notes = symbol__annotation(sym); - struct map *map = args->ms.map; + struct map *map = args->ms->map; struct dso *dso = map__dso(map); u64 start = map__rip_2objdump(map, sym->start); /* Malloc-ed buffer containing instructions read from disk. */ @@ -184,7 +184,7 @@ int symbol__disassemble_llvm(const char *filename, struct symbol *sym, args->line = disasm_buf; args->line_nr = 0; args->fileloc = NULL; - args->ms.sym = sym; + args->ms->sym = sym; dl = disasm_line__new(args); if (dl == NULL) @@ -242,7 +242,7 @@ int symbol__disassemble_llvm(const char *filename, struct symbol *sym, &line_storage_len); args->line_nr = 0; args->fileloc = NULL; - args->ms.sym = sym; + args->ms->sym = sym; llvm_addr2line(filename, pc, &args->fileloc, (unsigned int *)&args->line_nr, false, NULL); -- 2.51.0