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Message-ID: <66ed9589.050a0220.2abe4d.0019.GAE@google.com> Date: Fri, 20 Sep 2024 08:32:25 -0700 From: syzbot <syzbot+37757dc11ee77ef850bb@...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 Hello, syzbot found the following issue on: HEAD commit: 2004cef11ea0 Merge tag 'sched-core-2024-09-19' of git://gi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14362427980000 kernel config: https://syzkaller.appspot.com/x/.config?x=390864846727e762 dashboard link: https://syzkaller.appspot.com/bug?extid=37757dc11ee77ef850bb compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16f5f69f980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=154afb00580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-2004cef1.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/8654ff1e22d1/vmlinux-2004cef1.xz kernel image: https://storage.googleapis.com/syzbot-assets/049428496a18/bzImage-2004cef1.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+37757dc11ee77ef850bb@...kaller.appspotmail.com program syz-executor305 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: 0 UID: 0 PID: 5092 Comm: syz-executor305 Not tainted 6.11.0-syzkaller-07337-g2004cef11ea0 #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 drivers/ata/libata-scsi.c:2276 [inline] RIP: 0010:ata_msense_control+0x966/0x1cf0 drivers/ata/libata-scsi.c:2358 Code: b6 04 10 84 c0 0f 85 9b 0f 00 00 4c 89 e8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 b6 0f 00 00 66 c7 03 00 e4 49 89 ec 49 c1 ec 03 <41> 0f b6 04 14 84 c0 0f 85 cc 0f 00 00 0f b6 5d 00 c0 e3 04 80 e3 RSP: 0018:ffffc90002d8f068 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffffff9a7036be RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff9a7036bd RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000003 R10: ffffffff9a7036b3 R11: fffffbfff34e06d8 R12: 0000000000000000 R13: ffffffff9a7036bf R14: 0000000000000046 R15: ffff888034faadf8 FS: 00005555605c5380(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000380 CR3: 000000003dd82000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> 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+0x1ae8/0x2320 drivers/ata/libata-scsi.c:4316 __ata_scsi_queuecmd+0x21e/0x1030 drivers/ata/libata-scsi.c:4191 ata_scsi_queuecmd+0x3bb/0x530 drivers/ata/libata-scsi.c:4234 scsi_dispatch_cmd drivers/scsi/scsi_lib.c:1608 [inline] scsi_queue_rq+0x1d7c/0x2e90 drivers/scsi/scsi_lib.c:1850 blk_mq_dispatch_rq_list+0xb89/0x1b30 block/blk-mq.c:2032 __blk_mq_sched_dispatch_requests+0x424/0x1840 block/blk-mq-sched.c:301 blk_mq_sched_dispatch_requests+0xcb/0x140 block/blk-mq-sched.c:331 blk_mq_run_hw_queue+0x9a5/0xae0 block/blk-mq.c:2245 blk_execute_rq+0x239/0x4b0 block/blk-mq.c:1398 sg_scsi_ioctl drivers/scsi/scsi_ioctl.c:593 [inline] scsi_ioctl+0x222f/0x2d80 drivers/scsi/scsi_ioctl.c:901 sg_ioctl_common drivers/scsi/sg.c:1109 [inline] sg_ioctl+0x16e9/0x2e80 drivers/scsi/sg.c:1163 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f83297361a9 Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffb0f41208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fffb0f413d8 RCX: 00007f83297361a9 RDX: 0000000020000380 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007f83297a9610 R08: 002367732f766564 R09: 00007fffb0f413d8 R10: 000000000000001f R11: 0000000000000246 R12: 0000000000000001 R13: 00007fffb0f413c8 R14: 0000000000000001 R15: 0000000000000001 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ata_msense_control_spgt2 drivers/ata/libata-scsi.c:2276 [inline] RIP: 0010:ata_msense_control+0x966/0x1cf0 drivers/ata/libata-scsi.c:2358 Code: b6 04 10 84 c0 0f 85 9b 0f 00 00 4c 89 e8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 b6 0f 00 00 66 c7 03 00 e4 49 89 ec 49 c1 ec 03 <41> 0f b6 04 14 84 c0 0f 85 cc 0f 00 00 0f b6 5d 00 c0 e3 04 80 e3 RSP: 0018:ffffc90002d8f068 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffffff9a7036be RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff9a7036bd RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000003 R10: ffffffff9a7036b3 R11: fffffbfff34e06d8 R12: 0000000000000000 R13: ffffffff9a7036bf R14: 0000000000000046 R15: ffff888034faadf8 FS: 00005555605c5380(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000380 CR3: 000000003dd82000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: b6 04 mov $0x4,%dh 2: 10 84 c0 0f 85 9b 0f adc %al,0xf9b850f(%rax,%rax,8) 9: 00 00 add %al,(%rax) b: 4c 89 e8 mov %r13,%rax e: 48 c1 e8 03 shr $0x3,%rax 12: 0f b6 04 10 movzbl (%rax,%rdx,1),%eax 16: 84 c0 test %al,%al 18: 0f 85 b6 0f 00 00 jne 0xfd4 1e: 66 c7 03 00 e4 movw $0xe400,(%rbx) 23: 49 89 ec mov %rbp,%r12 26: 49 c1 ec 03 shr $0x3,%r12 * 2a: 41 0f b6 04 14 movzbl (%r12,%rdx,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 cc 0f 00 00 jne 0x1003 37: 0f b6 5d 00 movzbl 0x0(%rbp),%ebx 3b: c0 e3 04 shl $0x4,%bl 3e: 80 .byte 0x80 3f: e3 .byte 0xe3 --- 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 syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. 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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