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I found a very similar oops online: http://oops.kernel.org/oops/general-protection-fault-in-sidtab_context_to_sid/ Has anyone encountered this bug? I had something reported to me very similar where the faulting instruction was: 0xffffffff8133c81e <+174>: mov 0x14(%r12),%eax Addr2line on vmlinux produced: $ addr2line -f -e ./vmlinux ffffffff8133c81e context_cmp kernel/cht/security/selinux/ss/context.h:152 Actual Dump: [131436.409639] general protection fault: 0000 [#1] PREEMPT SMP [131436.416085] Modules linked in: tcp_diag inet_diag atomisp_css2401a0_v21 videobuf_vmalloc videobuf_core bt_lpm rfkill_gpio 8723bs(O) cfg80211 ov2680 ov8858_driver silead_ts ltr501 bmg160 ak09911 kxcjk_1013 [131436.436623] CPU: 3 PID: 3177 Comm: SettingsProvide Tainted: G W O 3.14.70-x86_64-02246-g49319b8 #1 [131436.447500] Hardware name: XXX CHTMRD.A6.002.016 09/20/2016 [131436.456542] task: ffff88006039cb30 ti: ffff88005e2ea000 task.ti: ffff88005e2ea000 [131436.465000] RIP: 0010:[<ffffffff8133c81e>] [131436.469579] [<ffffffff8133c81e>] sidtab_context_to_sid+0xae/0x480 [131436.476783] RSP: 0018:ffff88005e2ebae0 EFLAGS: 00010286 [131436.482814] RAX: 00000000fff9f9f9 RBX: ffffffff82776540 RCX: 0000000000000000 [131436.490884] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff82776540 [131436.498953] RBP: ffff88005e2ebb28 R08: ffff88005e2ebb88 R09: 0000000000000000 [131436.507022] R10: ffff88007826c000 R11: 2f2f2f2f2f2f2f2f R12: fff9f9f9fff9f9f9 [131436.515091] R13: ffff88005e2ebba0 R14: ffff88005e2ebbb8 R15: 0000000000000068 [131436.523160] FS: 00000000d1efbe00(006b) GS:ffff880079380000(0063) knlGS:00000000d1a77960 [131436.532297] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [131436.538813] CR2: 0000000072e67750 CR3: 000000005e1ba000 CR4: 00000000001007e0 [131436.546883] Last Branch Records: [131436.550590] to: [<ffffffff81aa9ac0>] general_protection+0x0/0x80 [131436.557700] from: [<ffffffff8133c81e>] sidtab_context_to_sid+0xae/0x480 [131436.565292] to: [<ffffffff8133c810>] sidtab_context_to_sid+0xa0/0x480 [131436.572885] from: [<ffffffff8133c806>] sidtab_context_to_sid+0x96/0x480 [131436.580478] to: [<ffffffff8133c800>] sidtab_context_to_sid+0x90/0x480 [131436.588070] from: [<ffffffff8133c825>] sidtab_context_to_sid+0xb5/0x480 [131436.595662] to: [<ffffffff8133c810>] sidtab_context_to_sid+0xa0/0x480 [131436.603255] from: [<ffffffff8133c842>] sidtab_context_to_sid+0xd2/0x480 [131436.610847] to: [<ffffffff8133c810>] sidtab_context_to_sid+0xa0/0x480 [131436.618439] from: [<ffffffff8133c842>] sidtab_context_to_sid+0xd2/0x480 [131436.626031] to: [<ffffffff8133c810>] sidtab_context_to_sid+0xa0/0x480 [131436.633624] from: [<ffffffff8133c842>] sidtab_context_to_sid+0xd2/0x480 [131436.641216] to: [<ffffffff8133c81e>] sidtab_context_to_sid+0xae/0x480 [131436.648810] from: [<ffffffff8133c7ef>] sidtab_context_to_sid+0x7f/0x480 [131436.656401] to: [<ffffffff8133c7e5>] sidtab_context_to_sid+0x75/0x480 [131436.663994] from: [<ffffffff8133cabb>] sidtab_context_to_sid+0x34b/0x480 [131436.671684] Stack: [131436.674023] ffff88005e2ebb88 ffff88005e2ebb08 ffffffff8134938e ffff88005e2ebc3c [131436.682416] 0000000000000000 ffff88005e2ebb88 0000000000000010 ffff880060371ea8 [131436.690809] ffff8800716d4968 ffff88005e2ebbf8 ffffffff8134372f 0000000600000000 [131436.699204] Call Trace: [131436.702036] [<ffffffff8134938e>] ? mls_context_isvalid+0x2e/0xb0 [131436.708944] [<ffffffff8134372f>] security_compute_sid.part.10+0x43f/0x550 [131436.716727] [<ffffffff81275d00>] ? search_dir+0x40/0x120 [131436.722851] [<ffffffff8134388e>] security_compute_sid+0x4e/0x50 [131436.729660] [<ffffffff81345d8d>] security_transition_sid+0x2d/0x40 [131436.736762] [<ffffffff81330496>] may_create+0x96/0x100 [131436.742699] [<ffffffff81330553>] selinux_inode_create+0x13/0x20 [131436.749509] [<ffffffff8132bcef>] security_inode_create+0x1f/0x30 [131436.756417] [<ffffffff811d146e>] vfs_create+0x8e/0x140 [131436.762353] [<ffffffff811d1d01>] do_last+0x7e1/0x1210 [131436.768192] [<ffffffff811cd71c>] ? link_path_walk+0x8c/0xfb0 [131436.774712] [<ffffffff811ab3f1>] ? kmem_cache_alloc_trace+0xe1/0x1d0 [131436.782008] [<ffffffff81333e4c>] ? selinux_file_alloc_security+0x3c/0x60 [131436.789692] [<ffffffff811d27eb>] path_openat+0xbb/0x6d0 [131436.795724] [<ffffffff811d0fb8>] ? SYSC_renameat+0xe8/0x3f0 [131436.802146] [<ffffffff811d363a>] do_filp_open+0x3a/0xa0 [131436.808179] [<ffffffff81aa8e78>] ? _raw_spin_unlock+0x18/0x40 [131436.814795] [<ffffffff811e03b7>] ? __alloc_fd+0xa7/0x130 [131436.820925] [<ffffffff811c090c>] do_sys_open+0x12c/0x220 [131436.827056] [<ffffffff812176a1>] compat_SyS_openat+0x11/0x20 [131436.833574] [<ffffffff81ab2f23>] sysenter_dispatch+0x7/0x1f [131436.839997] [<ffffffff8139b49b>] ? trace_hardirqs_on_thunk+0x3a/0x3c [131436.847289] Code: 02 00 00 66 2e 0f 1f 84 00 00 00 00 00 41 8b 50 0c 85 d2 74 08 39 d0 0f 84 70 02 00 00 4d 8b 64 24 50 4d 85 e4 0f 84 92 02 00 00 <41> 8b 44 24 14 85 c0 75 d9 41 8b 48 0c 85 c9 75 e1 49 8b 00 49 [131436.869023] RIP [131436.870977] [<ffffffff8133c81e>] sidtab_context_to_sid+0xae/0x480 [131436.878180] RSP <ffff88005e2ebae0> [131436.882285] ---[ end trace 4c33bfa820f020fe ]--- |
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