From: sashiko-bot@kernel.org
To: "Dapeng Mi" <dapeng1.mi@linux.intel.com>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: [Patch v11 01/10] perf dwarf-regs: Fix DWARF register index bounds check
Date: Mon, 14 Sep 2026 01:55:41 +0000 [thread overview]
Message-ID: <20260914015542.3D5861F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260914014049.2061519-2-dapeng1.mi@linux.intel.com>
> Tighten bounds validation in __get_dwarf_regnum_for_perf_regnum_xxx()
> helpers by changing perf_regnum > ARRAY_SIZE() to
> perf_regnum >= ARRAY_SIZE().
>
> This fixes an off-by-one condition where perf_regnum == ARRAY_SIZE()
> could pass validation and cause out-of-bounds access for
> dwarf_xxx_regnums[].
>
> Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260914014049.2061519-1-dapeng1.mi@linux.intel.com?part=1
next prev parent reply other threads:[~2026-09-14 1:55 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-14 1:40 [Patch v11 00/10] Perf tools: Support eGPRs/SSP/SIMD registers sampling Dapeng Mi
2026-09-14 1:40 ` [Patch v11 01/10] perf dwarf-regs: Fix DWARF register index bounds check Dapeng Mi
2026-09-14 1:55 ` sashiko-bot [this message]
2026-09-14 1:40 ` [Patch v11 02/10] perf util: Add missed fields in _attr__fprintf() and __attr_swap() Dapeng Mi
2026-09-14 1:53 ` sashiko-bot
2026-09-14 1:40 ` [Patch v11 03/10] tools headers: Sync x86 headers with kernel sources Dapeng Mi
2026-09-14 1:55 ` sashiko-bot
2026-09-14 3:06 ` Mi, Dapeng
2026-09-14 1:40 ` [Patch v11 04/10] perf headers: Sync perf_event.h/perf_regs.h with the kernel headers Dapeng Mi
2026-09-14 2:01 ` sashiko-bot
2026-09-14 3:23 ` Mi, Dapeng
2026-09-14 1:40 ` [Patch v11 05/10] perf regs: Support x86 eGPRs/SSP sampling Dapeng Mi
2026-09-14 2:06 ` sashiko-bot
2026-09-14 1:40 ` [Patch v11 06/10] perf regs: Support x86 SIMD registers sampling Dapeng Mi
2026-09-14 2:03 ` sashiko-bot
2026-09-14 5:14 ` Mi, Dapeng
2026-09-14 1:40 ` [Patch v11 07/10] perf regs: Enable dumping of SIMD registers Dapeng Mi
2026-09-14 2:04 ` sashiko-bot
2026-09-14 5:17 ` Mi, Dapeng
2026-09-14 18:29 ` Arnaldo Carvalho de Melo
2026-09-14 19:28 ` Arnaldo Carvalho de Melo
2026-09-14 23:56 ` Mi, Dapeng
2026-09-15 0:05 ` Arnaldo Carvalho de Melo
2026-09-14 1:40 ` [Patch v11 08/10] perf dwarf-regs: Add SIMD/eGPRs support for x86 DWARF registers Dapeng Mi
2026-09-14 1:56 ` sashiko-bot
2026-09-14 1:40 ` [Patch v11 09/10] perf tests: Add x86 eGPRs/SSP registers sampling test Dapeng Mi
2026-09-14 1:57 ` sashiko-bot
2026-09-14 1:40 ` [Patch v11 10/10] perf tests: Add SIMD " Dapeng Mi
2026-09-14 1:59 ` sashiko-bot
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