From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [3.10-rc1 SLUB?] kmemcheck reports read from freed/unallocated memory
Date: Tue, 14 May 2013 21:06:06 +0900 [thread overview]
Message-ID: <201305142106.AAG35418.JOSFOLFMHOFVQt@I-love.SAKURA.ne.jp> (raw)
I got below warning. The problem might be in SLUB code.
WARNING: kmemcheck: Caught 64-bit read from freed memory (ffff88007a1297a0)
6098127a0088ffff0000000001000000c0c6fe790088ffff0800000000000000
f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f
^
RIP: 0010:[<ffffffff8113e023>] [<ffffffff8113e023>] __kmalloc+0xb3/0x1a0
RSP: 0018:ffff880079a17be8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000010 RCX: ffff88007b9d5580
RDX: 0000000000000427 RSI: ffffffff81c23600 RDI: 00000000001d5580
RBP: ffff880079a17c18 R08: ffff880079a16000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000004 R12: ffff88007ac03c80
R13: 00000000000000d0 R14: ffff88007a1297a0 R15: ffffffff8119a5bd
FS: 00007f1b62687700(0000) GS:ffff88007b200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88007a6346c8 CR3: 0000000073cc0000 CR4: 00000000000407f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
[<ffffffff8119a5bd>] load_elf_binary+0x29d/0xe70
[<ffffffff8114dd9f>] search_binary_handler+0x1af/0x400
[<ffffffff811989fc>] load_script+0x24c/0x290
[<ffffffff8114dd9f>] search_binary_handler+0x1af/0x400
[<ffffffff8114fd16>] do_execve_common+0x2a6/0x370
[<ffffffff8114fde9>] do_execve+0x9/0x10
[<ffffffff8114fe28>] SyS_execve+0x38/0x60
[<ffffffff817a7b09>] stub_execve+0x69/0xa0
[<ffffffffffffffff>] 0xffffffffffffffff
Kernel config is at http://I-love.SAKURA.ne.jp/tmp/config-3.10-rc1-kmemcheck
Full dmesg is at http://I-love.SAKURA.ne.jp/tmp/dmesg-3.10-rc1-kmemcheck.txt
Regards.
reply other threads:[~2013-05-14 12:06 UTC|newest]
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