ci2 starts bisection 2024-10-28 14:53:04.423194031 +0000 UTC m=+47.532160215 bisecting fixing commit since 3feee789f44683df0030028bc3536a4f043b04cd building syzkaller on 2a40360c27f1cd827c9fa0183aa402ef505d07db ensuring issue is reproducible on original commit 3feee789f44683df0030028bc3536a4f043b04cd testing commit 3feee789f44683df0030028bc3536a4f043b04cd gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e72ce181d93b46dfcc6a3920adf8f604253f00621fb9238c4d88b065e19143b8 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 3feee789f44683df0030028bc3536a4f043b04cd gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 78b35fbba4b6eb0aa8943a397e8e6a83785e72c8d8342fa9868d8bad1fb12fab 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed kconfig minimization: base=4789 full=6018 leaves diff=240 split chunks (needed=false): <240> split chunk #0 of len 240 into 5 parts testing without sub-chunk 1/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 3feee789f44683df0030028bc3536a4f043b04cd gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5fda6420e09c19b59af86701742e119c824c1f7acf2882c7737eb480cbd1ec0f 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 3feee789f44683df0030028bc3536a4f043b04cd gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6a8cd093212cfa7e7e73aed12f5836eb5aa7b7cec754ae322db0b7f71ed0cca8 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 3feee789f44683df0030028bc3536a4f043b04cd gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bfbe14c91a75c73954b1815851420cda7dd77faead42944c72918b02d69e9819 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 3feee789f44683df0030028bc3536a4f043b04cd gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b015a6320cf714cde3330070a834862c209ea27bcd59c41e603ac01105ab3b02 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 3feee789f44683df0030028bc3536a4f043b04cd gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building 3feee789f44683df0030028bc3536a4f043b04cd: net/socket.c:1128: undefined reference to `wext_handle_ioctl' net/socket.c:3397: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:346: undefined reference to `wext_proc_exit' net/core/net-procfs.c:330: undefined reference to `wext_proc_init' minimized to 48 configs; suspects: [HID_ZEROPLUS 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 USB_SERIAL_FTDI_SIO 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_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_ZYDAS X86_X32 ZEROPLUS_FF] disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing current HEAD e5e5644ea27f86a29c84df744a01ea7de65ef800 testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2b03a6b77ee251c4154311c31728a983b061a9ece179e4ae52bfeb35d9c2f8f1 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: 2h48m49.874204287s (build: 42m16.524726176s, test: 53m41.56529457s) crash still not fixed or there were kernel test errors commit msg: Revert "udf: Avoid excessive partition lengths" crash: BUG: unable to handle kernel NULL pointer dereference in fuse_file_put RSP: 002b:00007fdca5414048 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007fdca5b3a038 RCX: 00007fdca59abbd9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180 RBP: 00007fdca54140a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 000000000000006e R14: 00007fdca5b3a038 R15: 00007ffc504ec8b8 BUG: kernel NULL pointer dereference, address: 0000000000000028 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 1140fe067 P4D 1140fe067 PUD 114122067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 0 PID: 492 Comm: syz.0.15 Not tainted 5.10.226-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:get_fuse_mount_super fs/fuse/fuse_i.h:921 [inline] RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:933 [inline] RIP: 0010:fuse_file_put+0x6e/0x6d0 fs/fuse/file.c:125 Code: 2b 04 25 28 00 00 00 0f 85 47 06 00 00 48 81 c4 10 02 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 49 89 fd 49 89 f4 89 d3 41 89 c8 <48> 8b 47 28 b9 1c 00 00 00 48 c7 85 f8 fd ff ff 00 00 00 00 4c 8d RSP: 0018:ffffc9000062f670 EFLAGS: 00010246 RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffff8881140fc100 RDI: 0000000000000000 RBP: ffffc9000062f8a8 R08: 0000000000000000 R09: ffffc9000062f800 R10: 00000000fffff000 R11: 3fffffffffffffff R12: ffff8881140fc100 R13: 0000000000000000 R14: ffff8881140fc400 R15: 0000000000000000 FS: 00007fdca54146c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000028 CR3: 0000000114278000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fuse_sync_release+0x2d/0x40 fs/fuse/file.c:393 fuse_create_open+0xa33/0xa80 fs/fuse/dir.c:801 fuse_atomic_open+0xfe/0x130 fs/fuse/dir.c:862 atomic_open fs/namei.c:3114 [inline] lookup_open fs/namei.c:3219 [inline] open_last_lookups fs/namei.c:3317 [inline] path_openat+0x6d2/0x10d0 fs/namei.c:3506 do_filp_open+0x9d/0x140 fs/namei.c:3536 do_sys_openat2+0x9c/0x210 fs/open.c:1217 do_sys_open fs/open.c:1233 [inline] __do_sys_creat fs/open.c:1307 [inline] __se_sys_creat fs/open.c:1301 [inline] __x64_sys_creat+0x46/0x60 fs/open.c:1301 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fdca59abbd9 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:00007fdca5414048 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007fdca5b3a038 RCX: 00007fdca59abbd9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180 RBP: 00007fdca54140a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 000000000000006e R14: 00007fdca5b3a038 R15: 00007ffc504ec8b8 Modules linked in: CR2: 0000000000000028 ---[ end trace c40bcd14a3a78b99 ]--- RIP: 0010:get_fuse_mount_super fs/fuse/fuse_i.h:921 [inline] RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:933 [inline] RIP: 0010:fuse_file_put+0x6e/0x6d0 fs/fuse/file.c:125 Code: 2b 04 25 28 00 00 00 0f 85 47 06 00 00 48 81 c4 10 02 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 49 89 fd 49 89 f4 89 d3 41 89 c8 <48> 8b 47 28 b9 1c 00 00 00 48 c7 85 f8 fd ff ff 00 00 00 00 4c 8d RSP: 0018:ffffc9000062f670 EFLAGS: 00010246 RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffff8881140fc100 RDI: 0000000000000000 RBP: ffffc9000062f8a8 R08: 0000000000000000 R09: ffffc9000062f800 R10: 00000000fffff000 R11: 3fffffffffffffff R12: ffff8881140fc100 R13: 0000000000000000 R14: ffff8881140fc400 R15: 0000000000000000 FS: 00007fdca54146c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000028 CR3: 0000000114278000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 2b 04 25 28 00 00 00 sub 0x28,%eax 7: 0f 85 47 06 00 00 jne 0x654 d: 48 81 c4 10 02 00 00 add $0x210,%rsp 14: 5b pop %rbx 15: 41 5c pop %r12 17: 41 5d pop %r13 19: 41 5e pop %r14 1b: 41 5f pop %r15 1d: 5d pop %rbp 1e: c3 ret 1f: 49 89 fd mov %rdi,%r13 22: 49 89 f4 mov %rsi,%r12 25: 89 d3 mov %edx,%ebx 27: 41 89 c8 mov %ecx,%r8d * 2a: 48 8b 47 28 mov 0x28(%rdi),%rax <-- trapping instruction 2e: b9 1c 00 00 00 mov $0x1c,%ecx 33: 48 c7 85 f8 fd ff ff movq $0x0,-0x208(%rbp) 3a: 00 00 00 00 3e: 4c rex.WR 3f: 8d .byte 0x8d