| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <c141a18c-b18d-b775-1848-527c35a1c433@csgroup.eu>
Date: Tue, 15 Jun 2021 17:05:00 +0200
From: Christophe Leroy <christophe.leroy@...roup.eu>
To: "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Oops (NULL pointer) with 'perf record' of selftest 'null_syscall'
For your information, I'm getting the following Oops. Detected with 5.13-rc6, it also oopses on 5.12
and 5.11.
Runs ok on 5.10. I'm starting bisecting now.
root@...ippro:/tmp# perf record /root/null_syscall
[ 285.559987] BUG: Kernel NULL pointer dereference on read at 0x00000040
[ 285.566533] Faulting instruction address: 0xc0021f0c
[ 285.571486] Oops: Kernel access of bad area, sig: 11 [#1]
[ 285.576872] BE PAGE_SIZE=4K PREEMPT CMPCPRO
[ 285.581080] SAF3000 DIE NOTIFICATION
[ 285.584661] CPU: 0 PID: 442 Comm: null_syscall Not tainted 5.13.0-rc6-s3k-dev-01645-g7649ee3d2957
#5164
[ 285.594035] NIP: c0021f0c LR: c00e8ad8 CTR: c00d8a5c
[ 285.599074] REGS: e67757d0 TRAP: 0300 Not tainted (5.13.0-rc6-s3k-dev-01645-g7649ee3d2957)
[ 285.607576] MSR: 00001032 <ME,IR,DR,RI> CR: 44775b18 XER: 20000000
[ 285.614063] DAR: 00000040 DSISR: 20000000
[ 285.614063] GPR00: c00e8810 e6775880 c1c52640 e6775b20 7cb36ae0 f0000028 43ebeedc 5ccc47d0
[ 285.614063] GPR08: 00000000 00000900 e6775b20 00000001 00000000 1025b2c0 10013088 10012ee0
[ 285.614063] GPR16: b0000000 00000007 00000001 c00deb64 00000042 00000001 78db7b23 c0b13200
[ 285.614063] GPR24: 00000000 00000000 00000000 e6775b20 c13b8560 00000107 e6775940 e67758e8
[ 285.651693] NIP [c0021f0c] perf_instruction_pointer+0x10/0x60
[ 285.657460] LR [c00e8ad8] perf_prepare_sample+0x344/0x674
[ 285.662859] Call Trace:
[ 285.665301] [e6775880] [c00e8810] perf_prepare_sample+0x7c/0x674 (unreliable)
[ 285.672452] [e67758c0] [c00e8e44] perf_event_output_forward+0x3c/0x94
[ 285.678903] [e6775910] [c00dea8c] __perf_event_overflow+0x74/0x14c
[ 285.685108] [e6775930] [c00dec5c] perf_swevent_hrtimer+0xf8/0x170
[ 285.691217] [e6775a40] [c008c8d0] __hrtimer_run_queues.constprop.0+0x160/0x318
[ 285.698456] [e6775a90] [c008d94c] hrtimer_interrupt+0x148/0x3b0
[ 285.704394] [e6775ae0] [c000c0c0] timer_interrupt+0xc4/0x22c
[ 285.710067] [e6775b10] [c00046f0] Decrementer_virt+0xb8/0xbc
[ 285.715744] --- interrupt: 900 at pagecache_get_page+0x210/0x430
[ 285.721764] NIP: c00f52a8 LR: c00f5408 CTR: c00f59d8
[ 285.726805] REGS: e6775b20 TRAP: 0900 Not tainted (5.13.0-rc6-s3k-dev-01645-g7649ee3d2957)
[ 285.735306] MSR: 00009032 <EE,ME,IR,DR,RI> CR: 28422d68 XER: 00000000
[ 285.742056]
[ 285.742056] GPR00: c00f513c e6775bd0 c1c52640 c1c52640 00000000 00000000 00000000 c1382c38
[ 285.742056] GPR08: 00000000 00000000 00000001 00000000 88482d68 1025b2c0 10013088 10012ee0
[ 285.742056] GPR16: b0000000 00000007 00000001 10012ee0 c18187ac c0b87800 61c88647 c0c18c00
[ 285.742056] GPR24: 00000001 00000003 00000000 00000002 c18187a8 00100cca 00000044 00000000
[ 285.777079] NIP [c00f52a8] pagecache_get_page+0x210/0x430
[ 285.782482] LR [c00f5408] pagecache_get_page+0x370/0x430
[ 285.787796] --- interrupt: 900
[ 285.790843] [e6775bd0] [c00f513c] pagecache_get_page+0xa4/0x430 (unreliable)
[ 285.797910] [e6775c30] [c00f5ca8] filemap_fault+0x2d0/0x8e8
[ 285.803500] [e6775ca0] [c012d244] __do_fault+0x4c/0xd8
[ 285.808666] [e6775cb0] [c0130f64] handle_mm_fault+0x274/0x10b8
[ 285.814517] [e6775d30] [c0014f58] do_page_fault+0x1d4/0x67c
[ 285.820117] [e6775d60] [c000424c] DataAccess_virt+0xd4/0xe4
[ 285.825707] --- interrupt: 300 at __arch_clear_user+0x10/0xcc
[ 285.831458] NIP: c001a3cc LR: c01d5cfc CTR: 00000000
[ 285.836497] REGS: e6775d70 TRAP: 0300 Not tainted (5.13.0-rc6-s3k-dev-01645-g7649ee3d2957)
[ 285.845000] MSR: 00009032 <EE,ME,IR,DR,RI> CR: 48004264 XER: 20000000
[ 285.851751] DAR: 10012ee0 DSISR: 22000000
[ 285.851751] GPR00: c01d53fc e6775e20 c1c52640 00000000 00000120 00000008 c136241c 00000000
[ 285.851751] GPR08: 00000000 9ffed120 10012ee0 00000004 28004868 1025b2c0 10013088 10012ee0
[ 285.851751] GPR16: b0000000 00000007 00000001 10012ee0 10000000 10012d0c 10000000 c1d74240
[ 285.851751] GPR24: 10012ee0 00000000 c1345e80 c1343dc0 10000b38 00000000 c132ec00 c1386a00
[ 285.889384] NIP [c001a3cc] __arch_clear_user+0x10/0xcc
[ 285.894527] LR [c01d5cfc] load_elf_binary+0xec4/0x1340
[ 285.899682] --- interrupt: 300
[ 285.902730] [e6775e20] [c01d53fc] load_elf_binary+0x5c4/0x1340 (unreliable)
[ 285.909713] [e6775ea0] [c0163258] bprm_execve+0x200/0x55c
[ 285.915138] [e6775ef0] [c0163e00] do_execveat_common+0x178/0x1f4
[ 285.921162] [e6775f20] [c0165558] sys_execve+0x40/0x58
[ 285.926321] [e6775f40] [c001404c] ret_from_syscall+0x0/0x28
[ 285.931917] --- interrupt: c00 at 0xfc3ce78
[ 285.936097] NIP: 0fc3ce78 LR: 0fc3d7cc CTR: c01657cc
[ 285.941135] REGS: e6775f50 TRAP: 0c00 Not tainted (5.13.0-rc6-s3k-dev-01645-g7649ee3d2957)
[ 285.949636] MSR: 0000d032 <EE,PR,ME,IR,DR,RI> CR: 22004868 XER: 20000000
[ 285.956655]
[ 285.956655] GPR00: 0000000b afab1bf0 a7d77a50 afab6ee1 afab64c8 104bd9b0 fefefeff 7f7f7f7f
[ 285.956655] GPR08: afab6ee0 00000000 006df8f9 0000011d 24004864 1025b2c0 10231a50 10249108
[ 285.956655] GPR16: 104beeb0 10254830 105dd3f4 10250000 1018a124 10188448 10234e58 00000000
[ 285.956655] GPR24: 10231ae0 00000003 00000001 104bd9b0 afab64c8 afab6ee1 0fd25244 afab1bf0
[ 285.991684] NIP [0fc3ce78] 0xfc3ce78
[ 285.995257] LR [0fc3d7cc] 0xfc3d7cc
[ 285.998742] --- interrupt: c00
[ 286.001789] Instruction dump:
[ 286.004757] 3d20c07d 80a40010 3889847c 486bc444 80630084 546397fe 38630001 4e800020
[ 286.012556] 3d20c0b9 7c6a1b78 810915e4 812300a0 <81080040> 55290036 2c090f00 5508056a
[ 286.020531] ---[ end trace e381e6fcc2db5226 ]---
Powered by blists - more mailing lists