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Message-ID: <66f24ead.050a0220.c23dd.001d.GAE@google.com> Date: Mon, 23 Sep 2024 22:31:25 -0700 From: syzbot <syzbot+fb415bc0af1b572478e1@...kaller.appspotmail.com> To: cassel@...nel.org, dlemoal@...nel.org, linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com Subject: [syzbot] [ide?] general protection fault in ata_msense_control_spgt2 Hello, syzbot found the following issue on: HEAD commit: baeb9a7d8b60 Merge tag 'sched-rt-2024-09-17' of git://git... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=129b7f00580000 kernel config: https://syzkaller.appspot.com/x/.config?x=5d3981d50a2855c2 dashboard link: https://syzkaller.appspot.com/bug?extid=fb415bc0af1b572478e1 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-baeb9a7d.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/02c319355ed9/vmlinux-baeb9a7d.xz kernel image: https://storage.googleapis.com/syzbot-assets/41f9f78e928c/bzImage-baeb9a7d.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+fb415bc0af1b572478e1@...kaller.appspotmail.com program syz.1.2960 is using a deprecated SCSI ioctl, please convert it to SG_IO Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 3 UID: 0 PID: 13886 Comm: syz.1.2960 Not tainted 6.11.0-syzkaller-07341-gbaeb9a7d8b60 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:ata_msense_control_spgt2.isra.0+0x4ce/0x610 drivers/ata/libata-scsi.c:2276 Code: 00 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 23 70 92 fb 4c 89 e2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 4c 89 e2 83 e2 07 38 d0 7f 08 84 c0 0f 85 12 01 00 00 RSP: 0018:ffffc900034d74f0 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffffffff9a8cbffc RCX: ffffc900062e1000 RDX: 0000000000000000 RSI: ffffffff85fa94fd RDI: 0000000000000001 RBP: 0000000000000007 R08: 0000000000000001 R09: 0000000000000007 R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000007 R14: ffff888026e72df8 R15: 00000000000000ff FS: 00007f42191ff6c0(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3efc33 CR3: 000000002a25a000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> ata_msense_control+0x1a4/0x6e0 drivers/ata/libata-scsi.c:2358 ata_scsiop_mode_sense drivers/ata/libata-scsi.c:2474 [inline] ata_scsi_rbuf_fill drivers/ata/libata-scsi.c:1815 [inline] ata_scsi_simulate+0xcff/0x34c0 drivers/ata/libata-scsi.c:4316 __ata_scsi_queuecmd+0xb35/0x13c0 drivers/ata/libata-scsi.c:4191 ata_scsi_queuecmd+0xac/0x160 drivers/ata/libata-scsi.c:4234 scsi_dispatch_cmd drivers/scsi/scsi_lib.c:1608 [inline] scsi_queue_rq+0x1273/0x3650 drivers/scsi/scsi_lib.c:1850 blk_mq_dispatch_rq_list+0x443/0x1dc0 block/blk-mq.c:2032 __blk_mq_sched_dispatch_requests+0x219/0x1620 block/blk-mq-sched.c:301 blk_mq_sched_dispatch_requests+0xd4/0x150 block/blk-mq-sched.c:331 blk_mq_run_hw_queue+0x645/0x9a0 block/blk-mq.c:2245 blk_execute_rq+0x198/0x410 block/blk-mq.c:1398 sg_scsi_ioctl drivers/scsi/scsi_ioctl.c:593 [inline] scsi_ioctl+0x983/0x1840 drivers/scsi/scsi_ioctl.c:901 sg_ioctl_common drivers/scsi/sg.c:1109 [inline] sg_ioctl+0xaf3/0x2750 drivers/scsi/sg.c:1163 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __x64_sys_ioctl+0x18d/0x210 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f421977def9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f42191ff038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4219935f80 RCX: 00007f421977def9 RDX: 0000000020000380 RSI: 0000000000000001 RDI: 0000000000000001 RBP: 00007f42197f0b76 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f4219935f80 R15: 00007ffcd901abf8 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ata_msense_control_spgt2.isra.0+0x4ce/0x610 drivers/ata/libata-scsi.c:2276 Code: 00 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 23 70 92 fb 4c 89 e2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 4c 89 e2 83 e2 07 38 d0 7f 08 84 c0 0f 85 12 01 00 00 RSP: 0018:ffffc900034d74f0 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffffffff9a8cbffc RCX: ffffc900062e1000 RDX: 0000000000000000 RSI: ffffffff85fa94fd RDI: 0000000000000001 RBP: 0000000000000007 R08: 0000000000000001 R09: 0000000000000007 R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000007 R14: ffff888026e72df8 R15: 00000000000000ff FS: 00007f42191ff6c0(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3efc33 CR3: 000000002a25a000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 48 83 c4 08 add $0x8,%rsp 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: 41 5d pop %r13 a: 41 5e pop %r14 c: 41 5f pop %r15 e: c3 ret f: cc int3 10: cc int3 11: cc int3 12: cc int3 13: e8 23 70 92 fb call 0xfb92703b 18: 4c 89 e2 mov %r12,%rdx 1b: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 22: fc ff df 25: 48 c1 ea 03 shr $0x3,%rdx * 29: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax <-- trapping instruction 2d: 4c 89 e2 mov %r12,%rdx 30: 83 e2 07 and $0x7,%edx 33: 38 d0 cmp %dl,%al 35: 7f 08 jg 0x3f 37: 84 c0 test %al,%al 39: 0f 85 12 01 00 00 jne 0x151 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@...glegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
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