ci2 starts bisection 2024-03-30 09:30:31.00703019 +0000 UTC m=+29787.738348197 bisecting fixing commit since c2611a04b92f0e6a38f718c50605300a325b7c7b building syzkaller on d216d8a03b50bef82eac746d227230835f061640 ensuring issue is reproducible on original commit c2611a04b92f0e6a38f718c50605300a325b7c7b testing commit c2611a04b92f0e6a38f718c50605300a325b7c7b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c5ca0f38279861a7b323ad3d6158756ea8d1c201b36fcb5d62c476d49590aeea all runs: crashed: general protection fault in fuse_file_put representative crash: general protection fault in fuse_file_put, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit c2611a04b92f0e6a38f718c50605300a325b7c7b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 83c957905477a5d5c9934dfd95097af253119f25009090361565ab36b634a6d3 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_file_put representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_file_put, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=5179 full=6487 leaves diff=250 split chunks (needed=false): <250> split chunk #0 of len 250 into 5 parts testing without sub-chunk 1/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit c2611a04b92f0e6a38f718c50605300a325b7c7b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f374636005924dc0891879936395b08b65e044526e0b0d009c7b3edb21556910 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_file_put representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_file_put, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit c2611a04b92f0e6a38f718c50605300a325b7c7b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fb30051540ebc5e551359c99965a7fb0760df60e900490f151bbe295f56f8fd1 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_file_put representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_file_put, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit c2611a04b92f0e6a38f718c50605300a325b7c7b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1f53da9322ba5ee7205a83bf0ad72233177d72dbb53b447556ad766106cbb991 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_file_put representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_file_put, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit c2611a04b92f0e6a38f718c50605300a325b7c7b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 27e5e7fe25f6e0aa04fd1563e0df7d53b7bf76ea16a67a15f932428663d2b112 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_file_put representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_file_put, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit c2611a04b92f0e6a38f718c50605300a325b7c7b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building c2611a04b92f0e6a38f718c50605300a325b7c7b: net/socket.c:1225: undefined reference to `wext_handle_ioctl' net/socket.c:3420: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:329: undefined reference to `wext_proc_init' net/core/net-procfs.c:345: undefined reference to `wext_proc_exit' minimized to 50 configs; suspects: [HID_ZEROPLUS USB_NET_CDC_MBIM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_DM9601 USB_NET_GL620A USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD USB_OHCI_HCD_PCI USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_PRINTER USB_SERIAL_GENERIC USB_SERIAL_PL2303 USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_TRANCEVIBRATOR USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_WDM WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_PURELIFI WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_SILABS WLAN_VENDOR_ZYDAS X86_X32_ABI ZEROPLUS_FF] disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing current HEAD 5b8114ec3c9234ea3c54ac6f60fb77904b713dc3 testing commit 5b8114ec3c9234ea3c54ac6f60fb77904b713dc3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7847247ae59cba18b51039781584ad39aa64a27579542ee31e59335aea97b5f5 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_file_put representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_file_put, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h42m50.982350469s (build: 50m23.765518004s, test: 47m54.293741238s) crash still not fixed or there were kernel test errors commit msg: UPSTREAM: usb: dwc3: gadget: Don't disconnect if not started crash: BUG: unable to handle kernel NULL pointer dereference in fuse_file_put RSP: 002b:00007f124c9a00c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f124bd9c120 RCX: 00007f124bc7cae9 RDX: 0000000000000c41 RSI: 0000000020002000 RDI: ffffffffffffff9c RBP: 00007f124c9a0120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 000000000000006e R14: 00007f124bd9c120 R15: 00007ffe0fb08c98 BUG: kernel NULL pointer dereference, address: 0000000000000028 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10bac5067 P4D 10bac5067 PUD 10cc2e067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 0 PID: 363 Comm: syz-executor.0 Not tainted 6.1.68-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:974 [inline] RIP: 0010:fuse_file_put+0x44/0x590 fs/fuse/file.c:119 Code: 04 25 28 00 00 00 48 89 45 d0 4c 8b 76 08 b8 ff ff ff ff f0 0f c1 46 28 83 f8 01 0f 85 ef 00 00 00 41 89 cc 41 89 d5 49 89 ff <48> 8b 47 28 48 8b 80 c8 03 00 00 48 89 85 d8 fd ff ff 48 c7 85 08 RSP: 0018:ffffc9000079f5e0 EFLAGS: 00010246 RAX: 0000000000000001 RBX: ffff88810b9c1900 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffff88810b9c1900 RDI: 0000000000000000 RBP: ffffc9000079f810 R08: 0000000000000000 R09: ffffc9000079f778 R10: 00000000ffffefff R11: 3e4b5341542f3c20 R12: 0000000000000000 R13: 0000000000000001 R14: ffff88810b9c1a00 R15: 0000000000000000 FS: 00007f124c9a06c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000028 CR3: 0000000115c52000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fuse_sync_release+0x2c/0x40 fs/fuse/file.c:400 fuse_create_open+0xa4f/0xb40 fs/fuse/dir.c:825 fuse_atomic_open+0xea/0x140 fs/fuse/dir.c:887 atomic_open fs/namei.c:3276 [inline] lookup_open fs/namei.c:3384 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0x3e2/0xb60 fs/namei.c:3711 do_filp_open+0xad/0x150 fs/namei.c:3741 do_sys_openat2+0x8e/0x240 fs/open.c:1341 do_sys_open fs/open.c:1357 [inline] __do_sys_openat fs/open.c:1373 [inline] __se_sys_openat fs/open.c:1368 [inline] __x64_sys_openat+0x79/0xa0 fs/open.c:1368 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f124bc7cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f124c9a00c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f124bd9c120 RCX: 00007f124bc7cae9 RDX: 0000000000000c41 RSI: 0000000020002000 RDI: ffffffffffffff9c RBP: 00007f124c9a0120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 000000000000006e R14: 00007f124bd9c120 R15: 00007ffe0fb08c98 Modules linked in: CR2: 0000000000000028 ---[ end trace 0000000000000000 ]--- RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:974 [inline] RIP: 0010:fuse_file_put+0x44/0x590 fs/fuse/file.c:119 Code: 04 25 28 00 00 00 48 89 45 d0 4c 8b 76 08 b8 ff ff ff ff f0 0f c1 46 28 83 f8 01 0f 85 ef 00 00 00 41 89 cc 41 89 d5 49 89 ff <48> 8b 47 28 48 8b 80 c8 03 00 00 48 89 85 d8 fd ff ff 48 c7 85 08 RSP: 0018:ffffc9000079f5e0 EFLAGS: 00010246 RAX: 0000000000000001 RBX: ffff88810b9c1900 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffff88810b9c1900 RDI: 0000000000000000 RBP: ffffc9000079f810 R08: 0000000000000000 R09: ffffc9000079f778 R10: 00000000ffffefff R11: 3e4b5341542f3c20 R12: 0000000000000000 R13: 0000000000000001 R14: ffff88810b9c1a00 R15: 0000000000000000 FS: 00007f124c9a06c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000028 CR3: 0000000115c52000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 04 25 add $0x25,%al 2: 28 00 sub %al,(%rax) 4: 00 00 add %al,(%rax) 6: 48 89 45 d0 mov %rax,-0x30(%rbp) a: 4c 8b 76 08 mov 0x8(%rsi),%r14 e: b8 ff ff ff ff mov $0xffffffff,%eax 13: f0 0f c1 46 28 lock xadd %eax,0x28(%rsi) 18: 83 f8 01 cmp $0x1,%eax 1b: 0f 85 ef 00 00 00 jne 0x110 21: 41 89 cc mov %ecx,%r12d 24: 41 89 d5 mov %edx,%r13d 27: 49 89 ff mov %rdi,%r15 * 2a: 48 8b 47 28 mov 0x28(%rdi),%rax <-- trapping instruction 2e: 48 8b 80 c8 03 00 00 mov 0x3c8(%rax),%rax 35: 48 89 85 d8 fd ff ff mov %rax,-0x228(%rbp) 3c: 48 rex.W 3d: c7 .byte 0xc7 3e: 85 08 test %ecx,(%rax)