general protection fault in dummy_set_selfpowered

Status: upstream: reported C repro on 2026/07/25 00:06
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+62f480062aaab954ddc4@syzkaller.appspotmail.com
First crash: 52d, last: 20d
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2026/07/28 lts (merge base) c86c4726e7f0 C [report] lost connection to test machine
2026/07/28 upstream (ToT) 3b5f4b83c4ab C [report] lost connection to test machine
▶ ▼ Similar bugs (7)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream general protection fault in dummy_set_selfpowered prio:low usb 10 syz, C error 1486 5d09h 49d 0/29 upstream: reported C repro on 2026/07/28 13:53
android-6-12 general protection fault in dummy_set_selfpowered 2 syz, C 142 13h48m 53d 0/1 premoderation: reported C repro on 2026/07/24 15:05
linux-5.15 general protection fault in dummy_set_selfpowered 2 syz, C 51 19d 53d 0/3 upstream: reported C repro on 2026/07/24 22:03
android-6-1 general protection fault in dummy_set_selfpowered origin:upstream 2 syz, C 95 4d18h 51d 0/2 upstream: reported C repro on 2026/07/26 13:33
linux-6.6 general protection fault in dummy_set_selfpowered 2 syz, C 55 19d 52d 0/2 upstream: reported C repro on 2026/07/25 01:11
android-5-10 general protection fault in dummy_set_selfpowered 2 syz, C 145 19d 53d 0/2 upstream: reported C repro on 2026/07/24 18:49
linux-6.1 BUG: unable to handle kernel paging request in dummy_set_selfpowered origin:upstream 8 syz, C 95 19d 53d 0/3 upstream: reported C repro on 2026/07/24 22:26

Sample crash report:
dummy_hcd dummy_hcd.0: stopped
dummy_hcd dummy_hcd.0: USB bus 1 deregistered
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 303 Comm: syz-executor294 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:dummy_set_selfpowered+0xbc/0x150 drivers/usb/gadget/udc/dummy_hcd.c:884
Code: 94 c0 4d 8d b4 c6 d0 04 00 00 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 7e 7e 7f fe 4d 8b 3e 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 65 7e 7f fe 41 be 58 11 00 00 4d
RSP: 0018:ffffc900009779e0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88811e582780
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000005
RBP: ffffc90000977a00 R08: ffff88810005906f R09: 1ffff1102000b20d
R10: dffffc0000000000 R11: ffffed102000b20e R12: dffffc0000000000
R13: ffff8881065b7478 R14: ffff88810b795160 R15: 0000000000000000
FS:  00005555781103c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffedba713d8 CR3: 000000012513c000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 usb_gadget_set_selfpowered+0x6c/0x180 drivers/usb/gadget/udc/core.c:534
 composite_dev_prepare+0x2e7/0x310 drivers/usb/gadget/composite.c:2277
 configfs_composite_bind+0xb4/0x13a0 drivers/usb/gadget/configfs.c:1342
 udc_bind_to_driver+0x1fb/0x770 drivers/usb/gadget/udc/core.c:1511
 usb_gadget_probe_driver+0x1fc/0x380 drivers/usb/gadget/udc/core.c:1589
 gadget_dev_desc_UDC_store+0x217/0x330 drivers/usb/gadget/configfs.c:321
 flush_write_buffer fs/configfs/file.c:207 [inline]
 configfs_write_iter+0x312/0x400 fs/configfs/file.c:229
 call_write_iter include/linux/fs.h:2212 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0x831/0xfd0 fs/read_write.c:594
 ksys_write+0x14a/0x260 fs/read_write.c:647
 __do_sys_write fs/read_write.c:659 [inline]
 __se_sys_write fs/read_write.c:656 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:656
 x64_sys_call+0x8ef/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
 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: 0033:0x7f2897b5cd79
Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 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 d8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd5fb02c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000200000000240 RCX: 00007f2897b5cd79
RDX: 000000000000000b RSI: 0000200000000280 RDI: 0000000000000004
RBP: 0073666769666e6f R08: 00007ffd5fb02d78 R09: 00007ffd5fb02d78
R10: 00007ffd5fb02d78 R11: 0000000000000246 R12: 6e6f635f796d2f2e
R13: 0000000000000002 R14: 00007f2897bedca0 R15: 0000000000000002
 </TASK>
Modules linked in:
---[ end trace 16c86dfaeb939a52 ]---
RIP: 0010:dummy_set_selfpowered+0xbc/0x150 drivers/usb/gadget/udc/dummy_hcd.c:884
Code: 94 c0 4d 8d b4 c6 d0 04 00 00 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 7e 7e 7f fe 4d 8b 3e 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 65 7e 7f fe 41 be 58 11 00 00 4d
RSP: 0018:ffffc900009779e0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88811e582780
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000005
RBP: ffffc90000977a00 R08: ffff88810005906f R09: 1ffff1102000b20d
R10: dffffc0000000000 R11: ffffed102000b20e R12: dffffc0000000000
R13: ffff8881065b7478 R14: ffff88810b795160 R15: 0000000000000000
FS:  00005555781103c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffedba713d8 CR3: 000000012513c000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	4d 8d b4 c6 d0 04 00 	lea    0x4d0(%r14,%rax,8),%r14
   7:	00
   8:	4c 89 f0             	mov    %r14,%rax
   b:	48 c1 e8 03          	shr    $0x3,%rax
   f:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
  14:	74 08                	je     0x1e
  16:	4c 89 f7             	mov    %r14,%rdi
  19:	e8 7e 7e 7f fe       	call   0xfe7f7e9c
  1e:	4d 8b 3e             	mov    (%r14),%r15
  21:	4c 89 f8             	mov    %r15,%rax
  24:	48 c1 e8 03          	shr    $0x3,%rax
* 28:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1) <-- trapping instruction
  2d:	74 08                	je     0x37
  2f:	4c 89 ff             	mov    %r15,%rdi
  32:	e8 65 7e 7f fe       	call   0xfe7f7e9c
  37:	41 be 58 11 00 00    	mov    $0x1158,%r14d
  3d:	4d                   	rex.WRB

Crashes (94):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/26 11:15 android13-5.15-lts 771777348d20 6a91adb4 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/19 20:45 android13-5.15-lts bbd17eb595bb 1e72964b .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/01 05:47 android13-5.15-lts 61d896ee2a80 e611ffe1 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/07/31 17:41 android13-5.15-lts 61d896ee2a80 7664cf44 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/07/30 07:00 android13-5.15-lts 61d896ee2a80 6ef5c1e2 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/07/29 17:23 android13-5.15-lts 61d896ee2a80 6ef5c1e2 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/07/28 18:37 android13-5.15-lts 61d896ee2a80 edc8a875 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/07/28 06:05 android13-5.15-lts 61d896ee2a80 45ae1df4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/07/28 05:34 android13-5.15-lts 61d896ee2a80 45ae1df4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/07/25 05:12 android13-5.15-lts 61d896ee2a80 492bab15 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/07/25 04:44 android13-5.15-lts 61d896ee2a80 492bab15 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/07/25 00:05 android13-5.15-lts 61d896ee2a80 dd737a83 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/26 22:09 android13-5.15-lts 771777348d20 a2b77b9e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/26 14:12 android13-5.15-lts 771777348d20 a2b77b9e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/26 04:34 android13-5.15-lts 771777348d20 6a91adb4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/25 15:10 android13-5.15-lts 0ebdd0175e37 a9a1fc32 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/25 13:10 android13-5.15-lts 0ebdd0175e37 a9a1fc32 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/25 09:48 android13-5.15-lts 0ebdd0175e37 614e416a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/25 04:52 android13-5.15-lts 2d18a4de3623 614e416a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/25 00:24 android13-5.15-lts 2d18a4de3623 614e416a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/25 00:24 android13-5.15-lts 2d18a4de3623 614e416a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/24 12:34 android13-5.15-lts dd960aad97f0 b55bd4c3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/24 09:42 android13-5.15-lts dd960aad97f0 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/24 06:14 android13-5.15-lts dd960aad97f0 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/23 12:54 android13-5.15-lts dd960aad97f0 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/23 06:49 android13-5.15-lts dd960aad97f0 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/23 01:43 android13-5.15-lts dd960aad97f0 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/22 22:03 android13-5.15-lts dd960aad97f0 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/22 13:45 android13-5.15-lts dd960aad97f0 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/21 13:45 android13-5.15-lts dd960aad97f0 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/21 09:56 android13-5.15-lts dd960aad97f0 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/21 03:58 android13-5.15-lts dd960aad97f0 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/21 01:40 android13-5.15-lts dd960aad97f0 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/20 14:41 android13-5.15-lts dd960aad97f0 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/19 19:09 android13-5.15-lts bbd17eb595bb 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/19 18:59 android13-5.15-lts bbd17eb595bb 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/19 15:59 android13-5.15-lts bbd17eb595bb 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/19 08:11 android13-5.15-lts a825653ab7af 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/18 21:17 android13-5.15-lts a825653ab7af 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/18 15:51 android13-5.15-lts a825653ab7af 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/17 14:27 android13-5.15-lts 54275df9611d 905244d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/17 11:49 android13-5.15-lts 54275df9611d 905244d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/17 09:37 android13-5.15-lts 54275df9611d 746171ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/17 05:38 android13-5.15-lts 54275df9611d 746171ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/17 01:25 android13-5.15-lts 54275df9611d 746171ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/16 16:28 android13-5.15-lts 54275df9611d 746171ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/16 04:11 android13-5.15-lts 54275df9611d 746171ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/16 01:44 android13-5.15-lts 54275df9611d 746171ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/15 01:30 android13-5.15-lts 54275df9611d 746171ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/14 17:11 android13-5.15-lts 54275df9611d 6f9b3e89 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/14 06:39 android13-5.15-lts 54275df9611d b13552fe .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/12 02:43 android13-5.15-lts 54275df9611d f8d35649 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/12 01:14 android13-5.15-lts 54275df9611d 71790083 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/09 21:03 android13-5.15-lts 6148a1b6bae4 5d63f80b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/09 10:21 android13-5.15-lts 6148a1b6bae4 5d63f80b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/09 07:30 android13-5.15-lts 6148a1b6bae4 5d63f80b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/08 04:23 android13-5.15-lts 6148a1b6bae4 5d63f80b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/08 04:22 android13-5.15-lts 6148a1b6bae4 5d63f80b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/08 04:21 android13-5.15-lts 6148a1b6bae4 5d63f80b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/07 12:06 android13-5.15-lts 6148a1b6bae4 e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
2026/08/05 05:50 android13-5.15-lts b885b84af7a2 52aa2820 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in dummy_set_selfpowered
* Struck through repros no longer work on HEAD.