FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
fail_dump lib/fault-inject.c:73 [inline]
should_fail_ex+0x412/0x560 lib/fault-inject.c:174
should_failslab+0xa8/0x100 mm/failslab.c:46
slab_pre_alloc_hook mm/slub.c:4906 [inline]
slab_alloc_node mm/slub.c:5239 [inline]
__kmalloc_cache_noprof+0x83/0x6e0 mm/slub.c:5775
kmalloc_noprof include/linux/slab.h:957 [inline]
kzalloc_noprof include/linux/slab.h:1094 [inline]
vidtv_psi_pmt_stream_init+0x5a/0x440 drivers/media/test-drivers/vidtv/vidtv_psi.c:1070
vidtv_channel_pmt_match_sections+0x229/0x420 drivers/media/test-drivers/vidtv/vidtv_channel.c:341
vidtv_channel_si_init+0x12c5/0x1580 drivers/media/test-drivers/vidtv/vidtv_channel.c:479
vidtv_mux_init+0x4b0/0x1a70 drivers/media/test-drivers/vidtv/vidtv_mux.c:519
vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline]
vidtv_start_feed+0x34a/0x510 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239
dmx_ts_feed_start_filtering+0x135/0x240 drivers/media/dvb-core/dvb_demux.c:747
dvb_dmxdev_start_feed drivers/media/dvb-core/dmxdev.c:655 [inline]
dvb_dmxdev_filter_start+0x447/0x10e0 drivers/media/dvb-core/dmxdev.c:766
dvb_demux_do_ioctl+0x48b/0x540 drivers/media/dvb-core/dmxdev.c:1077
dvb_usercopy+0x199/0x2e0 drivers/media/dvb-core/dvbdev.c:999
dvb_demux_ioctl+0x29/0x40 drivers/media/dvb-core/dmxdev.c:1186
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc1bc59aeb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc1bd3a5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc1bc815fa0 RCX: 00007fc1bc59aeb9
RDX: 0000200000000040 RSI: 0000000040146f2c RDI: 0000000000000003
RBP: 00007fc1bd3a5090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fc1bc816038 R14: 00007fc1bc815fa0 R15: 00007ffeee1a4788
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:vidtv_psi_desc_assign+0x29/0x90 drivers/media/test-drivers/vidtv/vidtv_psi.c:629
Code: 90 0f 1f 40 d6 41 57 41 56 41 55 41 54 53 48 89 f3 49 89 fe 49 bc 00 00 00 00 00 fc ff df e8 de 3a a2 f9 4d 89 f5 49 c1 ed 03 <43> 80 7c 25 00 00 74 08 4c 89 f7 e8 47 18 0c fa 4d 8b 3e 4c 39 fb
RSP: 0018:ffffc9000b71f910 EFLAGS: 00010247
RAX: ffffffff88224c12 RBX: ffff88805b3fa000 RCX: ffff8880340e0000
RDX: 0000000000000000 RSI: ffff88805b3fa000 RDI: 0000000000000005
RBP: ffff8880373e9b00 R08: 0000000000000000 R09: 4453534204050000
R10: dffffc0000000000 R11: ffffed100b67f402 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000005 R15: ffff888032d4b500
FS: 00007fc1bd3a56c0(0000) GS:ffff88808ccea000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc1bc7e8558 CR3: 000000001a696000 CR4: 0000000000352ef0
Call Trace:
vidtv_channel_pmt_match_sections+0x289/0x420 drivers/media/test-drivers/vidtv/vidtv_channel.c:349
vidtv_channel_si_init+0x12c5/0x1580 drivers/media/test-drivers/vidtv/vidtv_channel.c:479
vidtv_mux_init+0x4b0/0x1a70 drivers/media/test-drivers/vidtv/vidtv_mux.c:519
vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline]
vidtv_start_feed+0x34a/0x510 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239
dmx_ts_feed_start_filtering+0x135/0x240 drivers/media/dvb-core/dvb_demux.c:747
dvb_dmxdev_start_feed drivers/media/dvb-core/dmxdev.c:655 [inline]
dvb_dmxdev_filter_start+0x447/0x10e0 drivers/media/dvb-core/dmxdev.c:766
dvb_demux_do_ioctl+0x48b/0x540 drivers/media/dvb-core/dmxdev.c:1077
dvb_usercopy+0x199/0x2e0 drivers/media/dvb-core/dvbdev.c:999
dvb_demux_ioctl+0x29/0x40 drivers/media/dvb-core/dmxdev.c:1186
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc1bc59aeb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc1bd3a5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc1bc815fa0 RCX: 00007fc1bc59aeb9
RDX: 0000200000000040 RSI: 0000000040146f2c RDI: 0000000000000003
RBP: 00007fc1bd3a5090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fc1bc816038 R14: 00007fc1bc815fa0 R15: 00007ffeee1a4788
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:vidtv_psi_desc_assign+0x29/0x90 drivers/media/test-drivers/vidtv/vidtv_psi.c:629
Code: 90 0f 1f 40 d6 41 57 41 56 41 55 41 54 53 48 89 f3 49 89 fe 49 bc 00 00 00 00 00 fc ff df e8 de 3a a2 f9 4d 89 f5 49 c1 ed 03 <43> 80 7c 25 00 00 74 08 4c 89 f7 e8 47 18 0c fa 4d 8b 3e 4c 39 fb
RSP: 0018:ffffc9000b71f910 EFLAGS: 00010247
RAX: ffffffff88224c12 RBX: ffff88805b3fa000 RCX: ffff8880340e0000
RDX: 0000000000000000 RSI: ffff88805b3fa000 RDI: 0000000000000005
RBP: ffff8880373e9b00 R08: 0000000000000000 R09: 4453534204050000
R10: dffffc0000000000 R11: ffffed100b67f402 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000005 R15: ffff888032d4b500
FS: 00007fc1bd3a56c0(0000) GS:ffff88808ccea000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc1bc7e8558 CR3: 000000001a696000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess):
0: 90 nop
1: 0f 1f 40 d6 nopl -0x2a(%rax)
5: 41 57 push %r15
7: 41 56 push %r14
9: 41 55 push %r13
b: 41 54 push %r12
d: 53 push %rbx
e: 48 89 f3 mov %rsi,%rbx
11: 49 89 fe mov %rdi,%r14
14: 49 bc 00 00 00 00 00 movabs $0xdffffc0000000000,%r12
1b: fc ff df
1e: e8 de 3a a2 f9 call 0xf9a23b01
23: 4d 89 f5 mov %r14,%r13
26: 49 c1 ed 03 shr $0x3,%r13
* 2a: 43 80 7c 25 00 00 cmpb $0x0,0x0(%r13,%r12,1) <-- trapping instruction
30: 74 08 je 0x3a
32: 4c 89 f7 mov %r14,%rdi
35: e8 47 18 0c fa call 0xfa0c1881
3a: 4d 8b 3e mov (%r14),%r15
3d: 4c 39 fb cmp %r15,%rbx