Revision b704871124b477807966f06789c2b32f2de58bf7 authored by Kirill A. Shutemov on 30 April 2012, 13:18:01 UTC, committed by Guenter Roeck on 01 May 2012, 15:18:05 UTC
coretemp tries to access core_data array beyond bounds on cpu unplug if core id of the cpu if more than NUM_REAL_CORES-1. BUG: unable to handle kernel NULL pointer dereference at 000000000000013c IP: [<ffffffffa00159af>] coretemp_cpu_callback+0x93/0x1ba [coretemp] PGD 673e5a067 PUD 66e9b3067 PMD 0 Oops: 0000 [#1] SMP CPU 79 Modules linked in: sunrpc cpufreq_ondemand acpi_cpufreq freq_table mperf bnep bluetooth rfkill ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter nf_conntrack_ipv4 nf_defrag_ipv4 ip6_tables xt_state nf_conntrack coretemp crc32c_intel asix tpm_tis pcspkr usbnet iTCO_wdt i2c_i801 microcode mii joydev tpm i2c_core iTCO_vendor_support tpm_bios i7core_edac igb ioatdma edac_core dca megaraid_sas [last unloaded: oprofile] Pid: 3315, comm: set-cpus Tainted: G W 3.4.0-rc5+ #2 QCI QSSC-S4R/QSSC-S4R RIP: 0010:[<ffffffffa00159af>] [<ffffffffa00159af>] coretemp_cpu_callback+0x93/0x1ba [coretemp] RSP: 0018:ffff880472fb3d48 EFLAGS: 00010246 RAX: 0000000000000124 RBX: 0000000000000034 RCX: 00000000ffffffff RDX: 0000000000000000 RSI: 0000000000000046 RDI: 0000000000000246 RBP: ffff880472fb3d88 R08: ffff88077fcd36c0 R09: 0000000000000001 R10: ffffffff8184bc48 R11: 0000000000000000 R12: ffff880273095800 R13: 0000000000000013 R14: ffff8802730a1810 R15: 0000000000000000 FS: 00007f694a20f720(0000) GS:ffff88077fcc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 000000000000013c CR3: 000000067209b000 CR4: 00000000000007e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process set-cpus (pid: 3315, threadinfo ffff880472fb2000, task ffff880471fa0000) Stack: ffff880277b4c308 0000000000000003 ffff880472fb3d88 0000000000000005 0000000000000034 00000000ffffffd1 ffffffff81cadc70 ffff880472fb3e14 ffff880472fb3dc8 ffffffff8161f48d ffff880471fa0000 0000000000000034 Call Trace: [<ffffffff8161f48d>] notifier_call_chain+0x4d/0x70 [<ffffffff8107f1be>] __raw_notifier_call_chain+0xe/0x10 [<ffffffff81059d30>] __cpu_notify+0x20/0x40 [<ffffffff815fa251>] _cpu_down+0x81/0x270 [<ffffffff815fa477>] cpu_down+0x37/0x50 [<ffffffff815fd6a3>] store_online+0x63/0xc0 [<ffffffff813c7078>] dev_attr_store+0x18/0x30 [<ffffffff811f02cf>] sysfs_write_file+0xef/0x170 [<ffffffff81180443>] vfs_write+0xb3/0x180 [<ffffffff8118076a>] sys_write+0x4a/0x90 [<ffffffff816236a9>] system_call_fastpath+0x16/0x1b Code: 48 c7 c7 94 60 01 a0 44 0f b7 ac 10 ac 00 00 00 31 c0 e8 41 b7 5f e1 41 83 c5 02 49 63 c5 49 8b 44 c4 10 48 85 c0 74 56 45 31 ff <39> 58 18 75 4e eb 1f 49 63 d7 4c 89 f7 48 89 45 c8 48 6b d2 28 RIP [<ffffffffa00159af>] coretemp_cpu_callback+0x93/0x1ba [coretemp] RSP <ffff880472fb3d48> CR2: 000000000000013c Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: stable@vger.kernel.org # 3.0+ Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
1 parent 69964ea
| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 12.4 KB |
| Kconfig.debug | -rw-r--r-- | 1015 bytes |
| Makefile | -rw-r--r-- | 1.8 KB |
| backing-dev.c | -rw-r--r-- | 22.3 KB |
| bootmem.c | -rw-r--r-- | 20.7 KB |
| bounce.c | -rw-r--r-- | 6.5 KB |
| cleancache.c | -rw-r--r-- | 6.5 KB |
| compaction.c | -rw-r--r-- | 21.2 KB |
| debug-pagealloc.c | -rw-r--r-- | 2.1 KB |
| dmapool.c | -rw-r--r-- | 13.0 KB |
| fadvise.c | -rw-r--r-- | 3.6 KB |
| failslab.c | -rw-r--r-- | 1.3 KB |
| filemap.c | -rw-r--r-- | 69.0 KB |
| filemap_xip.c | -rw-r--r-- | 11.2 KB |
| fremap.c | -rw-r--r-- | 6.7 KB |
| highmem.c | -rw-r--r-- | 10.3 KB |
| huge_memory.c | -rw-r--r-- | 63.4 KB |
| hugetlb.c | -rw-r--r-- | 78.9 KB |
| hwpoison-inject.c | -rw-r--r-- | 3.3 KB |
| init-mm.c | -rw-r--r-- | 619 bytes |
| internal.h | -rw-r--r-- | 8.6 KB |
| kmemcheck.c | -rw-r--r-- | 2.8 KB |
| kmemleak-test.c | -rw-r--r-- | 3.3 KB |
| kmemleak.c | -rw-r--r-- | 52.6 KB |
| ksm.c | -rw-r--r-- | 54.7 KB |
| maccess.c | -rw-r--r-- | 1.6 KB |
| madvise.c | -rw-r--r-- | 11.7 KB |
| memblock.c | -rw-r--r-- | 26.7 KB |
| memcontrol.c | -rw-r--r-- | 146.4 KB |
| memory-failure.c | -rw-r--r-- | 41.9 KB |
| memory.c | -rw-r--r-- | 107.9 KB |
| memory_hotplug.c | -rw-r--r-- | 23.9 KB |
| mempolicy.c | -rw-r--r-- | 65.0 KB |
| mempool.c | -rw-r--r-- | 10.4 KB |
| migrate.c | -rw-r--r-- | 33.6 KB |
| mincore.c | -rw-r--r-- | 7.8 KB |
| mlock.c | -rw-r--r-- | 15.7 KB |
| mm_init.c | -rw-r--r-- | 3.7 KB |
| mmap.c | -rw-r--r-- | 71.2 KB |
| mmu_context.c | -rw-r--r-- | 1.4 KB |
| mmu_notifier.c | -rw-r--r-- | 9.1 KB |
| mmzone.c | -rw-r--r-- | 1.7 KB |
| mprotect.c | -rw-r--r-- | 7.9 KB |
| mremap.c | -rw-r--r-- | 14.0 KB |
| msync.c | -rw-r--r-- | 2.4 KB |
| nobootmem.c | -rw-r--r-- | 10.7 KB |
| nommu.c | -rw-r--r-- | 51.8 KB |
| oom_kill.c | -rw-r--r-- | 22.3 KB |
| page-writeback.c | -rw-r--r-- | 67.4 KB |
| page_alloc.c | -rw-r--r-- | 156.8 KB |
| page_cgroup.c | -rw-r--r-- | 11.9 KB |
| page_io.c | -rw-r--r-- | 3.2 KB |
| page_isolation.c | -rw-r--r-- | 3.6 KB |
| pagewalk.c | -rw-r--r-- | 5.8 KB |
| percpu-km.c | -rw-r--r-- | 2.8 KB |
| percpu-vm.c | -rw-r--r-- | 12.9 KB |
| percpu.c | -rw-r--r-- | 56.6 KB |
| pgtable-generic.c | -rw-r--r-- | 3.3 KB |
| prio_tree.c | -rw-r--r-- | 6.3 KB |
| process_vm_access.c | -rw-r--r-- | 13.3 KB |
| quicklist.c | -rw-r--r-- | 2.4 KB |
| readahead.c | -rw-r--r-- | 15.1 KB |
| rmap.c | -rw-r--r-- | 52.6 KB |
| shmem.c | -rw-r--r-- | 65.7 KB |
| slab.c | -rw-r--r-- | 120.6 KB |
| slob.c | -rw-r--r-- | 17.1 KB |
| slub.c | -rw-r--r-- | 129.3 KB |
| sparse-vmemmap.c | -rw-r--r-- | 5.9 KB |
| sparse.c | -rw-r--r-- | 20.3 KB |
| swap.c | -rw-r--r-- | 20.5 KB |
| swap_state.c | -rw-r--r-- | 10.2 KB |
| swapfile.c | -rw-r--r-- | 63.9 KB |
| thrash.c | -rw-r--r-- | 3.9 KB |
| truncate.c | -rw-r--r-- | 19.7 KB |
| util.c | -rw-r--r-- | 8.1 KB |
| vmalloc.c | -rw-r--r-- | 65.7 KB |
| vmscan.c | -rw-r--r-- | 102.7 KB |
| vmstat.c | -rw-r--r-- | 33.2 KB |
Computing file changes ...
