RAX: ffffffffffffffda RBX: 00007f274be1afa0 RCX: 00007f274bb931d9
RDX: 0000000000000000 RSI: 0000000000006f29 RDI: 0000000000000006
RBP: 00007f274bc2a888 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f274be1afac R14: 00007f274be1afa0 R15: 00007f274be1afa0
 </TASK>
------------[ cut here ]------------
kernel BUG at arch/x86/mm/physaddr.c:28!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4394 Comm: syz.0.34 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:__phys_addr+0x158/0x170 arch/x86/mm/physaddr.c:28
Code: ff ff e8 fb 14 43 00 48 c7 c7 d0 83 f9 8c 48 89 de 4c 89 f2 e8 d9 3c d3 02 e9 49 ff ff ff e8 df 14 43 00 0f 0b e8 d8 14 43 00 <0f> 0b e8 d1 14 43 00 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44
RSP: 0018:ffffc90004797820 EFLAGS: 00010293
RAX: ffffffff81360e88 RBX: 00004080047b1000 RCX: ffff8880285c5940
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90004797998 R08: 0000000000000040 R09: 1ffffffff1a3e6e6
R10: dffffc0000000000 R11: fffffbfff1a3e6e7 R12: ffff88801c592e10
R13: ffff88801c592e40 R14: 000000000000002e R15: 0000000000000001
FS:  000055556a382500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efcdfca7340 CR3: 000000005d703000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 virt_to_head_page include/linux/mm.h:911 [inline]
 kfree+0x64/0x2a0 mm/slub.c:4559
 vidtv_s302m_encoder_init+0x573/0x770 drivers/media/test-drivers/vidtv/vidtv_s302m.c:504
 vidtv_channel_s302m_init+0x357/0x830 drivers/media/test-drivers/vidtv/vidtv_channel.c:116
 vidtv_channels_init+0x41/0x90 drivers/media/test-drivers/vidtv/vidtv_channel.c:528
 vidtv_mux_init+0x4d0/0x1950 drivers/media/test-drivers/vidtv/vidtv_mux.c:521
 vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline]
 vidtv_start_feed+0x368/0x590 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239
 dmx_ts_feed_start_filtering+0x11c/0x210 drivers/media/dvb-core/dvb_demux.c:757
 dvb_dmxdev_start_feed drivers/media/dvb-core/dmxdev.c:666 [inline]
 dvb_dmxdev_filter_start+0x422/0x1060 drivers/media/dvb-core/dmxdev.c:777
 dvb_demux_do_ioctl+0x48d/0x530 drivers/media/dvb-core/dmxdev.c:1061
 dvb_usercopy+0x191/0x2b0 drivers/media/dvb-core/dvbdev.c:1017
 dvb_demux_ioctl+0x25/0x30 drivers/media/dvb-core/dmxdev.c:1197
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f274bb931d9
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:00007ffdec9f0b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f274be1afa0 RCX: 00007f274bb931d9
RDX: 0000000000000000 RSI: 0000000000006f29 RDI: 0000000000000006
RBP: 00007f274bc2a888 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f274be1afac R14: 00007f274be1afa0 R15: 00007f274be1afa0
 </TASK>
Modules linked in:
---[ end trace e2fd544ae8cd1a0b ]---
RIP: 0010:__phys_addr+0x158/0x170 arch/x86/mm/physaddr.c:28
Code: ff ff e8 fb 14 43 00 48 c7 c7 d0 83 f9 8c 48 89 de 4c 89 f2 e8 d9 3c d3 02 e9 49 ff ff ff e8 df 14 43 00 0f 0b e8 d8 14 43 00 <0f> 0b e8 d1 14 43 00 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44
RSP: 0018:ffffc90004797820 EFLAGS: 00010293
RAX: ffffffff81360e88 RBX: 00004080047b1000 RCX: ffff8880285c5940
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90004797998 R08: 0000000000000040 R09: 1ffffffff1a3e6e6
R10: dffffc0000000000 R11: fffffbfff1a3e6e7 R12: ffff88801c592e10
R13: ffff88801c592e40 R14: 000000000000002e R15: 0000000000000001
FS:  000055556a382500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efcdfca7340 CR3: 000000005d703000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400