syz-executor.6 (7531) used greatest stack depth: 23800 bytes left BUG: unable to handle page fault for address: ffffed100fffc000 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 7ffd3067 P4D 7ffd3067 PUD 7ffd2067 PMD 7ffd1067 PTE 0 Oops: 0002 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 PID: 7558 Comm: syz-executor.0 Not tainted 6.1.0-rc3-next-20221031 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__memset+0x24/0x50 Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00 RSP: 0018:ffff888041647cc0 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffff88800c07f0c0 RCX: 1ffffe21fe604b2b RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff88800c08da00 R08: 0000000000000005 R09: ffffed100180fe18 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800c08da00 R13: ffff88800c07f0c0 R14: ffffffff815f27a0 R15: 1ffff1100112361f FS: 00007f7325ea3700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 000000000ea54000 CR4: 0000000000350ef0 Call Trace: kasan_unpoison+0x23/0x60 mempool_exit+0x1c2/0x330 bioset_exit+0x2c9/0x630 disk_release+0x143/0x490 device_release+0xa2/0x250 kobject_put+0x173/0x280 put_device+0x1b/0x40 put_disk+0x41/0x60 loop_control_ioctl+0x4d1/0x630 __x64_sys_ioctl+0x19a/0x220 do_syscall_64+0x3b/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f732892db19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7325ea3188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f7328a40f60 RCX: 00007f732892db19 RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000005 RBP: 00007f7328987f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc7bc9070f R14: 00007f7325ea3300 R15: 0000000000022000 Modules linked in: CR2: ffffed100fffc000 ---[ end trace 0000000000000000 ]--- RIP: 0010:__memset+0x24/0x50 Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00 RSP: 0018:ffff888041647cc0 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffff88800c07f0c0 RCX: 1ffffe21fe604b2b RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff88800c08da00 R08: 0000000000000005 R09: ffffed100180fe18 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800c08da00 R13: ffff88800c07f0c0 R14: ffffffff815f27a0 R15: 1ffff1100112361f FS: 00007f7325ea3700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 000000000ea54000 CR4: 0000000000350ef0 loop7: detected capacity change from 0 to 40 FAT-fs (loop7): invalid media value (0x00) FAT-fs (loop7): Can't find a valid FAT filesystem loop5: detected capacity change from 0 to 40 loop1: detected capacity change from 0 to 40 loop6: detected capacity change from 0 to 40 FAT-fs (loop5): invalid media value (0x00) FAT-fs (loop5): Can't find a valid FAT filesystem FAT-fs (loop1): invalid media value (0x00) FAT-fs (loop1): Can't find a valid FAT filesystem FAT-fs (loop6): invalid media value (0x00) FAT-fs (loop6): Can't find a valid FAT filesystem BUG: unable to handle page fault for address: ffffed100fffc000 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 7ffd3067 P4D 7ffd3067 PUD 7ffd2067 PMD 7ffd1067 PTE 0 Oops: 0002 [#2] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 7585 Comm: syz-executor.4 Tainted: G D 6.1.0-rc3-next-20221031 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__memset+0x24/0x50 Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00 RSP: 0018:ffff888020367cc0 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffff88800c07f3c0 RCX: 1ffffe21fe604b37 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff88800c08da00 R08: 0000000000000005 R09: ffffed100180fe78 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800c08da00 R13: ffff88800c07f3c0 R14: ffffffff815f27a0 R15: 1ffff110010e5c1f FS: 00007fec93e88700(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 000000000eaba000 CR4: 0000000000350ee0 Call Trace: kasan_unpoison+0x23/0x60 mempool_exit+0x1c2/0x330 bioset_exit+0x2c9/0x630 disk_release+0x143/0x490 device_release+0xa2/0x250 kobject_put+0x173/0x280 put_device+0x1b/0x40 put_disk+0x41/0x60 loop_control_ioctl+0x4d1/0x630 __x64_sys_ioctl+0x19a/0x220 do_syscall_64+0x3b/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fec96933b19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fec93e88188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fec96a47020 RCX: 00007fec96933b19 RDX: 0000000000000002 RSI: 0000000000004c81 RDI: 0000000000000005 RBP: 00007fec9698df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc9dd398bf R14: 00007fec93e88300 R15: 0000000000022000 Modules linked in: CR2: ffffed100fffc000 ---[ end trace 0000000000000000 ]--- BUG: unable to handle page fault for address: ffffed100fffc000 RIP: 0010:__memset+0x24/0x50 #PF: supervisor write access in kernel mode Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00 #PF: error_code(0x0002) - not-present page RSP: 0018:ffff888041647cc0 EFLAGS: 00010212 PGD 7ffd3067 P4D 7ffd3067 RAX: 0000000000000000 RBX: ffff88800c07f0c0 RCX: 1ffffe21fe604b2b PUD 7ffd2067 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 PMD 7ffd1067 RBP: ffff88800c08da00 R08: 0000000000000005 R09: ffffed100180fe18 PTE 0 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800c08da00 R13: ffff88800c07f0c0 R14: ffffffff815f27a0 R15: 1ffff1100112361f Oops: 0002 [#3] PREEMPT SMP KASAN NOPTI FS: 00007fec93e88700(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 CPU: 0 PID: 7579 Comm: syz-executor.2 Tainted: G D 6.1.0-rc3-next-20221031 #1 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 CR2: ffffed100fffc000 CR3: 000000000eaba000 CR4: 0000000000350ee0 RIP: 0010:__memset+0x24/0x50 Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00 RSP: 0018:ffff888035a1fcc0 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffff88800c07f240 RCX: 1ffffe21fe604b31 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff88800c08da00 R08: 0000000000000005 R09: ffffed100180fe48 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800c08da00 R13: ffff88800c07f240 R14: ffffffff815f27a0 R15: 1ffff1100112321f FS: 00007f6007f88700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 000000000ea54000 CR4: 0000000000350ef0 Call Trace: kasan_unpoison+0x23/0x60 mempool_exit+0x1c2/0x330 bioset_exit+0x2c9/0x630 disk_release+0x143/0x490 device_release+0xa2/0x250 kobject_put+0x173/0x280 put_device+0x1b/0x40 put_disk+0x41/0x60 loop_control_ioctl+0x4d1/0x630 __x64_sys_ioctl+0x19a/0x220 do_syscall_64+0x3b/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f600aa33b19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6007f88188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f600ab47020 RCX: 00007f600aa33b19 RDX: 0000000000000001 RSI: 0000000000004c81 RDI: 0000000000000005 RBP: 00007f600aa8df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcf25e2cef R14: 00007f6007f88300 R15: 0000000000022000 Modules linked in: CR2: ffffed100fffc000 ---[ end trace 0000000000000000 ]--- RIP: 0010:__memset+0x24/0x50 Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00 RSP: 0018:ffff888041647cc0 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffff88800c07f0c0 RCX: 1ffffe21fe604b2b RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff88800c08da00 R08: 0000000000000005 R09: ffffed100180fe18 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800c08da00 R13: ffff88800c07f0c0 R14: ffffffff815f27a0 R15: 1ffff1100112361f FS: 00007f6007f88700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 000000000ea54000 CR4: 0000000000350ef0 9pnet_fd: p9_fd_create_tcp (7598): problem connecting socket to 127.0.0.1 BUG: unable to handle page fault for address: ffffed100fffc000 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 7ffd3067 P4D 7ffd3067 PUD 7ffd2067 PMD 7ffd1067 PTE 0 Oops: 0002 [#4] PREEMPT SMP KASAN NOPTI CPU: 0 PID: 7592 Comm: syz-executor.3 Tainted: G D 6.1.0-rc3-next-20221031 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__memset+0x24/0x50 Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00 RSP: 0018:ffff8880169a7cc0 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffff88800c07f540 RCX: 1ffffe21fe604b3d RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff88800c08da00 R08: 0000000000000005 R09: ffffed100180fea8 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800c08da00 R13: ffff88800c07f540 R14: ffffffff815f27a0 R15: 1ffff11001122c1f FS: 00007f20e5b35700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 0000000035102000 CR4: 0000000000350ef0 Call Trace: kasan_unpoison+0x23/0x60 mempool_exit+0x1c2/0x330 bioset_exit+0x2c9/0x630 disk_release+0x143/0x490 device_release+0xa2/0x250 kobject_put+0x173/0x280 put_device+0x1b/0x40 put_disk+0x41/0x60 loop_control_ioctl+0x4d1/0x630 __x64_sys_ioctl+0x19a/0x220 do_syscall_64+0x3b/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f20e85bfb19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f20e5b35188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f20e86d2f60 RCX: 00007f20e85bfb19 RDX: 0000000000000003 RSI: 0000000000004c81 RDI: 0000000000000005 RBP: 00007f20e8619f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffff1d75acf R14: 00007f20e5b35300 R15: 0000000000022000 Modules linked in: CR2: ffffed100fffc000 ---[ end trace 0000000000000000 ]--- RIP: 0010:__memset+0x24/0x50 Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00 RSP: 0018:ffff888041647cc0 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffff88800c07f0c0 RCX: 1ffffe21fe604b2b RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff88800c08da00 R08: 0000000000000005 R09: ffffed100180fe18 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800c08da00 R13: ffff88800c07f0c0 R14: ffffffff815f27a0 R15: 1ffff1100112361f FS: 00007f20e5b35700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 0000000035102000 CR4: 0000000000350ef0 loop4: detected capacity change from 0 to 40 syz-executor.4: attempt to access beyond end of device loop4: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop4, logical block 10, lost async page write BUG: unable to handle page fault for address: ffffed100fffc000 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 7ffd3067 P4D 7ffd3067 PUD 7ffd2067 PMD 7ffd1067 PTE 0 Oops: 0002 [#5] PREEMPT SMP KASAN NOPTI CPU: 0 PID: 7636 Comm: syz-executor.3 Tainted: G D 6.1.0-rc3-next-20221031 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__memset+0x24/0x50 Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00 RSP: 0018:ffff888041637cc0 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffff88800c07f840 RCX: 1ffffe21fe604b49 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff88800c08da00 R08: 0000000000000005 R09: ffffed100180ff08 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800c08da00 R13: ffff88800c07f840 R14: ffffffff815f27a0 R15: 1ffff1100112241f FS: 00007f20e5b35700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 0000000036c4e000 CR4: 0000000000350ef0 Call Trace: kasan_unpoison+0x23/0x60 mempool_exit+0x1c2/0x330 bioset_exit+0x2c9/0x630 disk_release+0x143/0x490 device_release+0xa2/0x250 kobject_put+0x173/0x280 put_device+0x1b/0x40 put_disk+0x41/0x60 loop_control_ioctl+0x4d1/0x630 __x64_sys_ioctl+0x19a/0x220 do_syscall_64+0x3b/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f20e85bfb19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f20e5b35188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f20e86d2f60 RCX: 00007f20e85bfb19 RDX: 0000000000000005 RSI: 0000000000004c81 RDI: 0000000000000005 RBP: 00007f20e8619f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffff1d75acf R14: 00007f20e5b35300 R15: 0000000000022000 Modules linked in: CR2: ffffed100fffc000 ---[ end trace 0000000000000000 ]--- RIP: 0010:__memset+0x24/0x50 Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00 RSP: 0018:ffff888041647cc0 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffff88800c07f0c0 RCX: 1ffffe21fe604b2b RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff88800c08da00 R08: 0000000000000005 R09: ffffed100180fe18 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800c08da00 R13: ffff88800c07f0c0 R14: ffffffff815f27a0 R15: 1ffff1100112361f FS: 00007f20e5b35700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 0000000036c4e000 CR4: 0000000000350ef0 loop4: detected capacity change from 0 to 40 loop4: detected capacity change from 0 to 40 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.6 not setting count and/or reply_len properly audit: type=1400 audit(1667216121.418:9): avc: denied { write } for pid=7714 comm="syz-executor.6" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 loop4: detected capacity change from 0 to 40 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.6 not setting count and/or reply_len properly sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.0 not setting count and/or reply_len properly sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.6 not setting count and/or reply_len properly syz-executor.4: attempt to access beyond end of device loop4: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop4, logical block 10, lost async page write sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.0 not setting count and/or reply_len properly loop6: detected capacity change from 0 to 1294 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.4 not setting count and/or reply_len properly sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.0 not setting count and/or reply_len properly sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.7 not setting count and/or reply_len properly sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.4 not setting count and/or reply_len properly sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.7 not setting count and/or reply_len properly audit: type=1400 audit(1667216125.050:10): avc: denied { tracepoint } for pid=7882 comm="syz-executor.7" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 loop6: detected capacity change from 0 to 360 loop6: detected capacity change from 0 to 360 loop6: detected capacity change from 0 to 360 loop6: detected capacity change from 0 to 360 ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) b: 49 89 f9 mov %rdi,%r9 e: 48 89 d1 mov %rdx,%rcx 11: 83 e2 07 and $0x7,%edx 14: 48 c1 e9 03 shr $0x3,%rcx 18: 40 0f b6 f6 movzbl %sil,%esi 1c: 48 b8 01 01 01 01 01 movabs $0x101010101010101,%rax 23: 01 01 01 26: 48 0f af c6 imul %rsi,%rax * 2a: f3 48 ab rep stos %rax,%es:(%rdi) <-- trapping instruction 2d: 89 d1 mov %edx,%ecx 2f: f3 aa rep stos %al,%es:(%rdi) 31: 4c 89 c8 mov %r9,%rax 34: e9 4d d4 12 00 jmpq 0x12d486 39: 66 data16 3a: 66 data16 3b: 2e cs 3c: 0f .byte 0xf 3d: 1f (bad) 3e: 84 00 test %al,(%rax)