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general protection fault in dvb_usbv2_generic_write

Status: upstream: reported C repro on 2024/09/13 13:35
Subsystems: usb media
[Documentation on labels]
Reported-by: syzbot+f9f5333782a854509322@syzkaller.appspotmail.com
First crash: 477d, last: 39m
Cause bisection: failed (error log, bisect log)
  
▶ ▼ Discussions (10)
Title Replies (including bot) Last reply
[syzbot] Monthly media report (Dec 2025) 0 (1) 2025/12/29 10:38
[PATCH v2 2/2] media: mxl111sf: fix i2c race condition during device probe 1 (1) 2025/11/07 18:16
[PATCH 2/2] media: mxl111sf: fix i2c race condition during device probe 1 (1) 2025/11/07 15:44
[syzbot] Monthly media report (Oct 2025) 0 (1) 2025/10/27 12:50
[syzbot] Monthly media report (Aug 2025) 0 (1) 2025/08/26 07:14
[syzbot] Monthly media report (Jul 2025) 0 (1) 2025/07/26 20:43
[syzbot] Monthly media report (Jun 2025) 0 (1) 2025/06/24 13:52
[syzbot] Monthly media report (Apr 2025) 0 (1) 2025/04/23 07:50
[syzbot] [media?] general protection fault in dvb_usbv2_generic_write 0 (2) 2025/04/14 14:20
[syzbot] Monthly media report (Feb 2025) 0 (1) 2025/02/19 12:35
▶ ▼ Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 general protection fault in dvb_usbv2_generic_write origin:upstream 2 C 14 5h08m 65d 0/3 upstream: reported C repro on 2025/10/25 16:29
linux-6.1 general protection fault in dvb_usbv2_generic_write 2 1 265d 265d 0/3 auto-obsoleted due to no activity on 2025/07/18 07:04
linux-6.1 general protection fault in dvb_usbv2_generic_write (2) origin:upstream 2 C 3 4d17h 4d17h 0/3 upstream: reported C repro on 2025/12/25 21:19
linux-6.6 general protection fault in dvb_usbv2_generic_write origin:upstream 2 C 3 4d17h 4d17h 0/2 upstream: reported C repro on 2025/12/25 21:19
▶ ▼ Last patch testing requests (5)
Created Duration User Patch Repo Result
2025/11/09 09:40 20m retest repro linux-next report log
2025/11/09 09:40 22m retest repro linux-next report log
2025/11/09 09:40 28m retest repro linux-next report log
2025/08/05 05:24 17m retest repro upstream report log
2025/05/01 16:49 16m retest repro upstream report log

Sample crash report:
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000019: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000000c8-0x00000000000000cf]
CPU: 1 UID: 0 PID: 5849 Comm: syz-executor279 Not tainted 6.15.0-rc2-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:580 [inline]
RIP: 0010:__mutex_lock+0x15d/0x10c0 kernel/locking/mutex.c:746
Code: c0 80 f6 73 9a 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 07 0e 00 00 83 3d 40 ba 41 0e 00 75 21 49 8d 7e 60 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 74 05 e8 17 52 fb f5 4d 39 76 60 0f 85 81 0d 00 00
RSP: 0018:ffffc90004206f80 EFLAGS: 00010202
RAX: 0000000000000019 RBX: ffffc90004207040 RCX: ffffffff9a73f603
RDX: ffff888035f65a00 RSI: ffffffff8e4fde18 RDI: 00000000000000c8
RBP: ffffc90004207118 R08: ffffc90004207087 R09: 0000000000000000
R10: ffffc90004207060 R11: fffff52000840e11 R12: 0000000000000000
R13: ffffc90004207048 R14: 0000000000000068 R15: dffffc0000000000
FS:  0000555594939380(0000) GS:ffff888125093000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f79554c50f0 CR3: 000000007cfd2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dvb_usbv2_generic_write+0x26/0x50 drivers/media/usb/dvb-usb-v2/dvb_usb_urb.c:77
 mxl111sf_ctrl_msg+0x172/0x2e0 drivers/media/usb/dvb-usb-v2/mxl111sf.c:73
 mxl111sf_write_reg+0xda/0x1f0 drivers/media/usb/dvb-usb-v2/mxl111sf.c:123
 mxl111sf_i2c_start drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c:130 [inline]
 mxl111sf_i2c_sw_xfer_msg drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c:-1 [inline]
 mxl111sf_i2c_xfer+0x923/0x8aa0 drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c:813
 __i2c_transfer+0x859/0x2250 drivers/i2c/i2c-core-base.c:-1
 i2c_transfer+0x2c2/0x430 drivers/i2c/i2c-core-base.c:2315
 i2c_transfer_buffer_flags+0x182/0x260 drivers/i2c/i2c-core-base.c:2343
 i2c_master_recv include/linux/i2c.h:79 [inline]
 i2cdev_read+0x10a/0x220 drivers/i2c/i2c-dev.c:155
 vfs_read+0x21f/0xb90 fs/read_write.c:568
 ksys_read+0x19d/0x2d0 fs/read_write.c:713
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f795544e4e9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc002847a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007f795544e4e9
RDX: 0000000000000063 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00232d6332692f76 R09: 00000000000000a0
R10: 000000000000000f R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc002849c8 R14: 00007ffc002847d0 R15: 00007ffc002847c0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:580 [inline]
RIP: 0010:__mutex_lock+0x15d/0x10c0 kernel/locking/mutex.c:746
Code: c0 80 f6 73 9a 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 07 0e 00 00 83 3d 40 ba 41 0e 00 75 21 49 8d 7e 60 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 74 05 e8 17 52 fb f5 4d 39 76 60 0f 85 81 0d 00 00
RSP: 0018:ffffc90004206f80 EFLAGS: 00010202

RAX: 0000000000000019 RBX: ffffc90004207040 RCX: ffffffff9a73f603
RDX: ffff888035f65a00 RSI: ffffffff8e4fde18 RDI: 00000000000000c8
RBP: ffffc90004207118 R08: ffffc90004207087 R09: 0000000000000000
R10: ffffc90004207060 R11: fffff52000840e11 R12: 0000000000000000
R13: ffffc90004207048 R14: 0000000000000068 R15: dffffc0000000000
FS:  0000555594939380(0000) GS:ffff888125093000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055dccfef9670 CR3: 000000007cfd2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	c0 80 f6 73 9a 48 c1 	rolb   $0xc1,0x489a73f6(%rax)
   7:	e8 03 42 0f b6       	call   0xb60f420f
   c:	04 38                	add    $0x38,%al
   e:	84 c0                	test   %al,%al
  10:	0f 85 07 0e 00 00    	jne    0xe1d
  16:	83 3d 40 ba 41 0e 00 	cmpl   $0x0,0xe41ba40(%rip)        # 0xe41ba5d
  1d:	75 21                	jne    0x40
  1f:	49 8d 7e 60          	lea    0x60(%r14),%rdi
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1) <-- trapping instruction
  2f:	74 05                	je     0x36
  31:	e8 17 52 fb f5       	call   0xf5fb524d
  36:	4d 39 76 60          	cmp    %r14,0x60(%r14)
  3a:	0f 85 81 0d 00 00    	jne    0xdc1

Crashes (96):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/04/14 14:20 upstream 8ffd015db85f 0bd6db41 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/12/28 18:40 linux-next cc3aa43b44bd d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/12/28 18:02 linux-next cc3aa43b44bd d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/10/26 09:31 linux-next 72fb0170ef1f c0460fcd .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/10/26 06:41 linux-next 72fb0170ef1f c0460fcd .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/10/26 05:47 linux-next 72fb0170ef1f c0460fcd .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/12/26 09:25 upstream ccd1cdca5cd4 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in dvb_usbv2_generic_write
2025/12/26 06:53 upstream ccd1cdca5cd4 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/12/25 23:12 upstream ccd1cdca5cd4 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dvb_usbv2_generic_write
2025/12/25 21:18 upstream ccd1cdca5cd4 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/12/21 08:36 upstream d8ba32c5a460 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dvb_usbv2_generic_write
2025/12/01 10:50 upstream 7d0a66e4bb90 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dvb_usbv2_generic_write
2025/11/29 06:36 upstream 6cf62f0174de d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/11/26 14:05 upstream 30f09200cc4a d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/10/19 22:22 upstream d9043c79ba68 1c8c8cd8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dvb_usbv2_generic_write
2025/10/06 22:51 upstream fd94619c4336 91305dbe .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dvb_usbv2_generic_write
2025/10/01 00:09 upstream 30d4efb2f5a5 65a0eece .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dvb_usbv2_generic_write
2025/08/29 05:34 upstream 07d9df80082b 3e1beec6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/08/12 20:42 upstream 53e760d89498 c06e8995 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/07/21 23:30 upstream 89be9a83ccf1 0b3788a0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/07/19 05:40 upstream d786aba32000 f550e092 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dvb_usbv2_generic_write
2025/07/16 14:44 upstream 155a3c003e55 c118d736 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/07/13 07:32 upstream 3f31a806a62e 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dvb_usbv2_generic_write
2025/07/09 20:21 upstream 733923397fd9 f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dvb_usbv2_generic_write
2025/07/08 00:38 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/07/05 18:35 upstream a79a588fc176 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/07/03 11:14 upstream b4911fb0b060 115ceea7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dvb_usbv2_generic_write
2025/07/03 09:43 upstream b4911fb0b060 115ceea7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/06/27 17:45 upstream 67a993863163 803ce19b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/06/16 22:16 upstream e04c78d86a96 d1716036 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/06/09 09:56 upstream 19272b37aa4f 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/06/09 06:00 upstream 939f15e640f1 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dvb_usbv2_generic_write
2025/06/07 14:47 upstream 7a912d04415b 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/05/27 13:46 upstream 914873bc7df9 874a1386 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/05/25 16:08 upstream d0c22de9995b ed351ea7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/05/25 16:07 upstream d0c22de9995b ed351ea7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/05/21 08:08 upstream b36ddb9210e6 8f9cf946 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/05/20 19:43 upstream a5806cd506af 8f9cf946 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/05/13 14:57 upstream e9565e23cd89 f6671af7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/05/10 15:06 upstream 3013c33dcbd9 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/12/27 01:30 upstream 3f0e9c8cefa9 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 general protection fault in dvb_usbv2_generic_write
2025/12/08 10:52 upstream c2f2b01b74be d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 general protection fault in dvb_usbv2_generic_write
2025/11/21 05:51 upstream 8e621c9a3375 280ea308 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 general protection fault in dvb_usbv2_generic_write
2025/10/12 19:37 upstream 67029a49db6c ff1712fe .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 general protection fault in dvb_usbv2_generic_write
2025/08/08 19:28 upstream bec077162bd0 987b750d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 general protection fault in dvb_usbv2_generic_write
2025/05/31 04:36 upstream 8477ab143069 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 general protection fault in dvb_usbv2_generic_write
2025/05/31 04:12 upstream 8477ab143069 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 general protection fault in dvb_usbv2_generic_write
2024/09/08 23:01 upstream 5dadc1be8fc5 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 general protection fault in dvb_usbv2_generic_write
2025/12/30 14:35 linux-next cc3aa43b44bd d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/12/30 13:02 linux-next cc3aa43b44bd d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/12/26 19:09 linux-next cc3aa43b44bd d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/12/25 12:14 linux-next cc3aa43b44bd d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/11/23 09:47 linux-next d724c6f85e80 4fb8ef37 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/11/12 01:03 linux-next 2666975a8905 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/09/27 01:27 linux-next 262858079afd 001c9061 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in dvb_usbv2_generic_write
2025/08/08 03:40 linux-next 442d93313cae 6a893178 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in dvb_usbv2_generic_write
* Struck through repros no longer work on HEAD.