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Date: Sun, 20 Jul 2008 11:42:53 +0200 From: Thomas Meyer <thomas@...3r.de> To: James Morris <jmorris@...ei.org> Cc: "Rafael J. Wysocki" <rjw@...k.pl>, Al Viro <viro@...iv.linux.org.uk>, Alexander Beregalov <a.beregalov@...il.com>, Stephen Rothwell <sfr@...b.auug.org.au>, linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>, Kernel Testers List <kernel-testers@...r.kernel.org>, Stephen Smalley <sds@...ho.nsa.gov>, Eric Paris <eparis@...isplace.org> Subject: BUG at security/selinux/avc.c:883 (was: Re: linux-next: Tree for July 17: early crash on x86-64) Am Sonntag, den 20.07.2008, 05:54 +1000 schrieb James Morris: > On Sat, 19 Jul 2008, Rafael J. Wysocki wrote: > > > > vfs-next/net-next conflict; apply the patch below on top of the > merge. > > > > That helped, thanks. > > > > But next it ran into the BUG_ON() in line 883 of > security/selinux/avc.c . > > Disabling selinux made the kernel boot, finally. > > Ugh, that's not supposed to happen. Where was this in the boot? Do > you > have a console log? > [ 3.845808] ------------[ cut here ]------------ [ 3.845858] kernel BUG at security/selinux/avc.c:883! [ 3.845910] invalid opcode: 0000 [#1] SMP [ 3.846004] last sysfs file: [ 3.846004] Modules linked in: [ 3.846004] [ 3.846004] Pid: 1, comm: swapper Not tainted (2.6.26-next-20080718 #17) [ 3.846004] EIP: 0060:[<c04d31cb>] EFLAGS: 00010246 CPU: 0 [ 3.846066] EIP is at avc_has_perm_noaudit+0x19/0x359 [ 3.846116] EAX: 00000001 EBX: 00000006 ECX: 00000006 EDX: 00000003 [ 3.846168] ESI: f7803280 EDI: f781ee28 EBP: f781ee0c ESP: f781edb8 [ 3.846220] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 3.846272] Process swapper (pid: 1, ti=f781e000 task=f7830000 task.ti=f781e000) [ 3.846324] Stack: f781ee0c 0006ee18 00000003 00000001 f781edd4 00100000 f7803280 00000001 [ 3.846608] 00000000 f7410f68 f7410f78 f7825000 f781ee10 c0491bcb f781ee64 f7402088 [ 3.846892] 00000004 019ff37b 00000006 f7803280 f781ee28 f781ee48 c04d3e38 00000000 [ 3.847181] Call Trace: [ 3.847280] [<c0491bcb>] ? __d_lookup+0x9e/0xda [ 3.847379] [<c04d3e38>] ? avc_has_perm+0x22/0x43 [ 3.847476] [<c0492269>] ? dput+0x34/0xf7 [ 3.847574] [<c04d52d8>] ? inode_has_perm+0x5b/0x65 [ 3.847673] [<c04d5694>] ? selinux_inode_permission+0xff/0x108 [ 3.847771] [<c04d10ca>] ? security_inode_permission+0x1e/0x20 [ 3.847870] [<c04885f4>] ? permission+0xc9/0xdd [ 3.847968] [<c048862a>] ? vfs_permission+0x10/0x12 [ 3.848070] [<c0481552>] ? sys_faccessat+0xb7/0x149 [ 3.848172] [<c04bd680>] ? sysfs_create_file+0x20/0x22 [ 3.848270] [<c043445b>] ? flush_cpu_workqueue+0x2a/0x66 [ 3.848368] [<c078ae5b>] ? pci_mmcfg_insert_resources+0xc1/0xe8 [ 3.848467] [<c04815f4>] ? sys_access+0x10/0x12 [ 3.848565] [<c0767421>] ? kernel_init+0x22b/0x24f [ 3.848664] [<c078d4d9>] ? tcp_congestion_default+0x0/0xf [ 3.848763] [<c0423a0d>] ? schedule_tail+0x1a/0x49 [ 3.848861] [<c04037f2>] ? ret_from_fork+0x6/0x1c [ 3.848959] [<c07671f6>] ? kernel_init+0x0/0x24f [ 3.849063] [<c07671f6>] ? kernel_init+0x0/0x24f [ 3.849161] [<c04044ef>] ? kernel_thread_helper+0x7/0x10 [ 3.849260] ======================= [ 3.849310] Code: c0 b8 e8 6c 7a c0 03 04 95 40 ee 75 c0 ff 40 14 c9 c3 55 89 e5 57 56 53 83 ec 48 83 7d 08 00 89 45 b8 89 55 b4 66 89 4d b2 75 04 <0f> 0b eb fe 64 8b 15 04 50 7a c0 b8 e8 6c 7a c0 0f b7 4d b2 03 [ 3.850916] EIP: [<c04d31cb>] avc_has_perm_noaudit+0x19/0x359 SS:ESP 0068:f781edb8 [ 3.851057] ---[ end trace 357a5e75e9b6bc6a ]--- [ 3.851106] Kernel panic - not syncing: Attempted to kill init! [ 3.851159] Pid: 1, comm: swapper Tainted: G D 2.6.26-next-20080718 #17 [ 3.851237] [<c063b0bd>] ? printk+0xf/0x12 [ 3.851336] [<c063b007>] panic+0x39/0xe0 [ 3.851410] [<c0429588>] do_exit+0x5b/0x6d1 [ 3.851486] [<c040436c>] ? apic_timer_interrupt+0x28/0x30 [ 3.851585] [<c063b0bd>] ? printk+0xf/0x12 [ 3.851682] [<c042688d>] ? oops_exit+0x23/0x28 [ 3.851786] [<c0404c1d>] die+0x12b/0x133 [ 3.851859] [<c063dad2>] do_trap+0x8a/0xa3 [ 3.851934] [<c0404fc5>] ? do_invalid_op+0x0/0x76 [ 3.852039] [<c0405031>] do_invalid_op+0x6c/0x76 [ 3.852114] [<c04d31cb>] ? avc_has_perm_noaudit+0x19/0x359 [ 3.852212] [<c0439c2c>] ? hrtimer_start+0x126/0x140 [ 3.852312] [<c063d41a>] error_code+0x72/0x78 [ 3.852387] [<c04d31cb>] ? avc_has_perm_noaudit+0x19/0x359 [ 3.852486] [<c0491bcb>] ? __d_lookup+0x9e/0xda [ 3.852584] [<c04d3e38>] avc_has_perm+0x22/0x43 [ 3.852659] [<c0492269>] ? dput+0x34/0xf7 [ 3.852757] [<c04d52d8>] inode_has_perm+0x5b/0x65 [ 3.852836] [<c04d5694>] selinux_inode_permission+0xff/0x108 [ 3.852912] [<c04d10ca>] security_inode_permission+0x1e/0x20 [ 3.852989] [<c04885f4>] permission+0xc9/0xdd [ 3.853070] [<c048862a>] vfs_permission+0x10/0x12 [ 3.853149] [<c0481552>] sys_faccessat+0xb7/0x149 [ 3.853227] [<c04bd680>] ? sysfs_create_file+0x20/0x22 [ 3.853328] [<c043445b>] ? flush_cpu_workqueue+0x2a/0x66 [ 3.853431] [<c078ae5b>] ? pci_mmcfg_insert_resources+0xc1/0xe8 [ 3.853532] [<c04815f4>] sys_access+0x10/0x12 [ 3.853609] [<c0767421>] kernel_init+0x22b/0x24f [ 3.853688] [<c078d4d9>] ? tcp_congestion_default+0x0/0xf [ 3.853797] [<c0423a0d>] ? schedule_tail+0x1a/0x49 [ 3.853896] [<c04037f2>] ? ret_from_fork+0x6/0x1c [ 3.853996] [<c07671f6>] ? kernel_init+0x0/0x24f [ 3.854099] [<c07671f6>] ? kernel_init+0x0/0x24f [ 3.854198] [<c04044ef>] kernel_thread_helper+0x7/0x10 [ 3.854276] ======================= -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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