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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f00f87ed038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f00f7be5fa0 RCX: 00007f00f798f7c9 RDX: 0000000000000000 RSI: 0000000040146f2c RDI: 0000000000000003 RBP: 00007f00f7a13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f00f7be6038 R14: 00007f00f7be5fa0 R15: 00007fffd5576b98 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 UID: 0 PID: 7425 Comm: syz.9.2677 Tainted: G U I L syzkaller #0 PREEMPT(full) Tainted: [U]=USER, [I]=FIRMWARE_WORKAROUND, [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:vidtv_psi_desc_assign+0x24/0x90 drivers/media/test-drivers/vidtv/vidtv_psi.c:629 Code: 90 90 90 90 90 90 0f 1f 40 d6 41 54 55 48 89 f5 53 48 89 fb e8 8d f4 b8 f9 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 75 47 4c 8b 23 49 39 ec 74 36 e8 69 f4 b8 f9 4d 85 e4 RSP: 0018:ffffc90003487a20 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: 0000000000000005 RCX: ffffc90013993000 RDX: 0000000000000000 RSI: ffffffff88056d33 RDI: 0000000000000005 RBP: ffff888075bbc4e0 R08: 0000000000000000 R09: 4453534204050000 R10: 0000000000000005 R11: ffff8880620766b0 R12: 0000000000000000 R13: ffff888034722d00 R14: ffff88807544e1c0 R15: ffff8880252ce640 FS: 00007f00f87ed6c0(0000) GS:ffff8881248f8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055556b6ac808 CR3: 00000000555de000 CR4: 00000000003526f0 Call Trace: vidtv_channel_pmt_match_sections drivers/media/test-drivers/vidtv/vidtv_channel.c:349 [inline] vidtv_channel_si_init+0x1445/0x1a50 drivers/media/test-drivers/vidtv/vidtv_channel.c:479 vidtv_mux_init+0x526/0xbe0 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+0x33e/0x4d0 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239 dmx_ts_feed_start_filtering+0xf6/0x220 drivers/media/dvb-core/dvb_demux.c:747 dvb_dmxdev_start_feed+0x273/0x3f0 drivers/media/dvb-core/dmxdev.c:655 dvb_dmxdev_filter_start+0x1b6/0xe10 drivers/media/dvb-core/dmxdev.c:766 dvb_dmxdev_pes_filter_set drivers/media/dvb-core/dmxdev.c:963 [inline] dvb_demux_do_ioctl+0x9de/0x12f0 drivers/media/dvb-core/dmxdev.c:1077 dvb_usercopy+0x167/0x340 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 fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f00f798f7c9 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f00f87ed038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f00f7be5fa0 RCX: 00007f00f798f7c9 RDX: 0000000000000000 RSI: 0000000040146f2c RDI: 0000000000000003 RBP: 00007f00f7a13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f00f7be6038 R14: 00007f00f7be5fa0 R15: 00007fffd5576b98 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:vidtv_psi_desc_assign+0x24/0x90 drivers/media/test-drivers/vidtv/vidtv_psi.c:629 Code: 90 90 90 90 90 90 0f 1f 40 d6 41 54 55 48 89 f5 53 48 89 fb e8 8d f4 b8 f9 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 75 47 4c 8b 23 49 39 ec 74 36 e8 69 f4 b8 f9 4d 85 e4 RSP: 0018:ffffc90003487a20 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: 0000000000000005 RCX: ffffc90013993000 RDX: 0000000000000000 RSI: ffffffff88056d33 RDI: 0000000000000005 RBP: ffff888075bbc4e0 R08: 0000000000000000 R09: 4453534204050000 R10: 0000000000000005 R11: ffff8880620766b0 R12: 0000000000000000 R13: ffff888034722d00 R14: ffff88807544e1c0 R15: ffff8880252ce640 FS: 00007f00f87ed6c0(0000) GS:ffff8881249f8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c8ff506 CR3: 00000000555de000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: ff c3 inc %ebx 2: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 9: 00 00 00 c: 0f 1f 40 00 nopl 0x0(%rax) 10: 48 89 f8 mov %rdi,%rax 13: 48 89 f7 mov %rsi,%rdi 16: 48 89 d6 mov %rdx,%rsi 19: 48 89 ca mov %rcx,%rdx 1c: 4d 89 c2 mov %r8,%r10 1f: 4d 89 c8 mov %r9,%r8 22: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 27: 0f 05 syscall * 29: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 2f: 73 01 jae 0x32 31: c3 ret 32: 48 c7 c1 a8 ff ff ff mov $0xffffffffffffffa8,%rcx 39: f7 d8 neg %eax 3b: 64 89 01 mov %eax,%fs:(%rcx) 3e: 48 rex.W