RBP: 00007f7b6f28bab8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7b6f47c038 R14: 00007f7b6f47bfa0 R15: 00007ffeccc24db8
 </TASK>
------------[ cut here ]------------
kernel BUG at arch/x86/mm/physaddr.c:28!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4400 Comm: syz.0.23 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
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:ffffc9000343f800 EFLAGS: 00010293
RAX: ffffffff81360e88 RBX: 0000408003319000 RCX: ffff88801a5a1dc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000343f978 R08: 0000000000000040 R09: 1ffffffff1a3e6e6
R10: dffffc0000000000 R11: fffffbfff1a3e6e7 R12: ffff8880235df210
R13: ffff8880235df240 R14: 000000000000002e R15: 0000000000000001
FS:  00007f7b6e8546c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055987e9f4950 CR3: 0000000073a35000 CR4: 00000000003506e0
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_section_feed_start_filtering+0x4f3/0x680 drivers/media/dvb-core/dvb_demux.c:983
 dvb_dmxdev_filter_start+0xc62/0x1060 drivers/media/dvb-core/dmxdev.c:768
 dvb_demux_do_ioctl+0x463/0x530 drivers/media/dvb-core/dmxdev.c:1079
 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: 0033:0x7f7b6f1f4559
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:00007f7b6e854028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f7b6f47bfa0 RCX: 00007f7b6f1f4559
RDX: 0000200000000080 RSI: 00000000403c6f2b RDI: 0000000000000005
RBP: 00007f7b6f28bab8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7b6f47c038 R14: 00007f7b6f47bfa0 R15: 00007ffeccc24db8
 </TASK>
Modules linked in:
---[ end trace e927f313fa622970 ]---
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:ffffc9000343f800 EFLAGS: 00010293
RAX: ffffffff81360e88 RBX: 0000408003319000 RCX: ffff88801a5a1dc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000343f978 R08: 0000000000000040 R09: 1ffffffff1a3e6e6
R10: dffffc0000000000 R11: fffffbfff1a3e6e7 R12: ffff8880235df210
R13: ffff8880235df240 R14: 000000000000002e R15: 0000000000000001
FS:  00007f7b6e8546c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005642e7b9f290 CR3: 0000000073a35000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400