From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from goalie.tycho.ncsc.mil (goalie [144.51.242.250]) by tarius.tycho.ncsc.mil (8.14.4/8.14.4) with ESMTP id s0T84Mm1030695 for ; Wed, 29 Jan 2014 03:04:23 -0500 Received: from desktop.mthode.org (unknown [IPv6:2001:470:e1cc:2:f66d:4ff:fe54:f77d]) (using TLSv1 with cipher ECDHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mx1.mthode.org (Postfix) with ESMTPSA id 3F4261527A for ; Wed, 29 Jan 2014 03:07:48 -0500 (EST) Message-ID: <52E8B5F8.2070005@mthode.org> Date: Wed, 29 Jan 2014 02:04:08 -0600 From: Matthew Thode MIME-Version: 1.0 To: selinux@tycho.nsa.gov Subject: file access causes a kernel bug Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="3uqopnqv7krPCnipLUFGQ6uucVXb7UE4f" Reply-To: mthode@mthode.org List-Id: "Security-Enhanced Linux \(SELinux\) mailing list" List-Post: List-Help: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --3uqopnqv7krPCnipLUFGQ6uucVXb7UE4f Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable This happens consistantly, just ls a particular dir and wheeeeee. [ 473.893141] ------------[ cut here ]------------ [ 473.962110] kernel BUG at security/selinux/ss/services.c:654! [ 473.995314] invalid opcode: 0000 [#6] SMP [ 474.027196] Modules linked in: [ 474.058118] CPU: 0 PID: 8138 Comm: ls Tainted: G D I 3.13.0-grsec #1 [ 474.116637] Hardware name: Supermicro X8ST3/X8ST3, BIOS 2.0 07/29/10 [ 474.149768] task: ffff8805f50cd010 ti: ffff8805f50cd488 task.ti: ffff8805f50cd488 [ 474.183707] RIP: 0010:[] [] context_struct_compute_av+0xce/0x308 [ 474.219954] RSP: 0018:ffff8805c0ac3c38 EFLAGS: 00010246 [ 474.252253] RAX: 0000000000000000 RBX: ffff8805c0ac3d94 RCX: 0000000000000100 [ 474.287018] RDX: ffff8805e8aac000 RSI: 00000000ffffffff RDI: ffff8805e8aaa000 [ 474.321199] RBP: ffff8805c0ac3cb8 R08: 0000000000000010 R09: 0000000000000006 [ 474.357446] R10: 0000000000000000 R11: ffff8805c567a000 R12: 0000000000000006 [ 474.419191] R13: ffff8805c2b74e88 R14: 00000000000001da R15: 0000000000000000 [ 474.453816] FS: 00007f2e75220800(0000) GS:ffff88061fc00000(0000) knlGS:0000000000000000 [ 474.489254] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 474.522215] CR2: 00007f2e74716090 CR3: 00000005c085e000 CR4: 00000000000207f0 [ 474.556058] Stack: [ 474.584325] ffff8805c0ac3c98 ffffffff811b549b ffff8805c0ac3c98 ffff8805f1190a40 [ 474.618913] ffff8805a6202f08 ffff8805c2b74e88 00068800d0464990 ffff8805e8aac860 [ 474.653955] ffff8805c0ac3cb8 000700068113833a ffff880606c75060 ffff8805c0ac3d94 [ 474.690461] Call Trace: [ 474.723779] [] ? lookup_fast+0x1cd/0x22a [ 474.778049] [] security_compute_av+0xf4/0x20b [ 474.811398] [] avc_compute_av+0x2a/0x179 [ 474.843813] [] avc_has_perm+0x45/0xf4 [ 474.875694] [] inode_has_perm+0x2a/0x31 [ 474.907370] [] selinux_inode_getattr+0x3c/0x3e [ 474.938726] [] security_inode_getattr+0x1b/0x22 [ 474.970036] [] vfs_getattr+0x19/0x2d [ 475.000618] [] vfs_fstatat+0x54/0x91 [ 475.030402] [] vfs_lstat+0x19/0x1b [ 475.061097] [] SyS_newlstat+0x15/0x30 [ 475.094595] [] ? __audit_syscall_entry+0xa1/0xc3 [ 475.148405] [] system_call_fastpath+0x16/0x1b [ 475.179201] Code: 00 48 85 c0 48 89 45 b8 75 02 0f 0b 48 8b 45 a0 48 8b 3d 45 d0 b6 00 8b 40 08 89 c6 ff ce e8 d1 b0 06 00 48 85 c0 49 89 c7 75 02 <0f> 0b 48 8b 45 b8 4c 8b 28 eb 1e 49 8d 7d 08 be 80 01 00 00 e8 [ 475.255884] RIP [] context_struct_compute_av+0xce/0x308 [ 475.296120] RSP [ 475.328734] ---[ end trace f076482e9d754adc ]--- --=20 -- Matthew Thode --3uqopnqv7krPCnipLUFGQ6uucVXb7UE4f Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAEBAgAGBQJS6LYCAAoJECRx6z5ArFrDn2wQAJziwJ0xFtGnkUe7qKR2ItFh 5K55z6iTzm5gQjkg3PNaes/5C7pwzD9PaWDMlsZXZcN1HpFG//USV3Poh5FPJ3Cw QZwheq/GvtT8We2Ia0aBMtDT+1227Q9d8fmPMxDfrKJ3BdDBI3F4QXT9Lh3GFUpU je+Oc67MQkHvfZX4FUdgLfW4QWJb/RVZqdXUpbfaBfUBDL2LEXRpih3nqA/KOE0D 6wOAYd+h+C/6Xe2TGKuNNQALwrSfs4RkL6ZXQi17mr5wH4ogAEGmnYLCeItb4i6i UMUXS/IhpKOm4ibdBvdSZgYnS3Ewub8TaBonURS6nil9mDtO+qgrZN13pbJN79c3 kJdRoKseRl5vxwnIJO1k/yGqm6vYFivjUtYDdPCKAFVMvMyRd50+YZlcq+E5/SaN 8ORbZjn32D1b9aSfCLW2gaDV/UC2TwdFcJ/NGTY4HYndZw4gbA6qcFJq+96xzvxk 4OnUVBIVom5oiMcT30+i0TVbfut/xyrPBkU77+MM9Iy0yv7xVxyBxB58BXUmUuNr fddzZ/hriZg1wQElGGpiPpJmT1So/2VdJpNZkQx7eH2l2xQ2hmlcNQZgxXbEeTaP dwlhIWTMRtIsaAP2l8dcL+PwpEpo3P2EYSlaI7oRjiVsStjhLVnM9AM1klEOXMic QehikZ27JouUDZQuLJSr =zSV7 -----END PGP SIGNATURE----- --3uqopnqv7krPCnipLUFGQ6uucVXb7UE4f--