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Groups > linux.kernel > #1302686
| From | Jiri Olsa <jolsa@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] perf tools: Fix mmap2 event allocation in synthesize code |
| Date | 2016-01-06 12:20 +0100 |
| Message-ID | <qNUig-nA-79@gated-at.bofh.it> (permalink) |
| References | <qNNgK-45J-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, Jan 06, 2016 at 03:41:23AM +0000, Wang Nan wrote: > perf_event__synthesize_mmap_events() issues mmap2 events, but the > memory of that event is allocated using: > > mmap_event = malloc(sizeof(mmap_event->mmap) + machine->id_hdr_size); > > If path of mmap source file is long (near PATH_MAX), random crash > would happen. Should use sizeof(mmap_event->mmap2). > > Fix two memory allocations and rename all mmap_event to mmap2_event > to make it clear. nice one.. Acked-by: Jiri Olsa <jolsa@kernel.org> thanks, jirka -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH] perf tools: Fix mmap2 event allocation in synthesize code Wang Nan <wangnan0@huawei.com> - 2016-01-06 04:50 +0100 Re: [PATCH] perf tools: Fix mmap2 event allocation in synthesize code Jiri Olsa <jolsa@redhat.com> - 2016-01-06 12:20 +0100
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