ci2 starts bisection 2024-05-16 03:33:28.32680311 +0000 UTC m=+14174.344794874 bisecting fixing commit since 270a77dd074c65429c92e5e0b275095ef1b73d32 building syzkaller on 3bb7af1def6b7b99e4c1c9573162eb41b5893cd3 ensuring issue is reproducible on original commit 270a77dd074c65429c92e5e0b275095ef1b73d32 testing commit 270a77dd074c65429c92e5e0b275095ef1b73d32 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1e1b65399c2377479493fb5ec9cb6c398b052e792d6c0b1d439723ef6c401d94 all runs: crashed: BUG: unable to handle kernel paging request in fuse_dev_do_write representative crash: BUG: unable to handle kernel paging request in fuse_dev_do_write, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 270a77dd074c65429c92e5e0b275095ef1b73d32 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0df4e74c3d4440cf812a3965b143c3da08e2860fbe545ece137c584274c67dad all runs: crashed: BUG: unable to handle kernel paging request in fuse_dev_do_write representative crash: BUG: unable to handle kernel paging request in fuse_dev_do_write, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed kconfig minimization: base=5179 full=6520 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 270a77dd074c65429c92e5e0b275095ef1b73d32 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cc3d1b663298d44d26221fda652db959c2028d9e5b598985823bb777790fa53e all runs: crashed: BUG: unable to handle kernel paging request in fuse_dev_do_write representative crash: BUG: unable to handle kernel paging request in fuse_dev_do_write, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 270a77dd074c65429c92e5e0b275095ef1b73d32 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: afb458cf823619866385e90932f4abeac1ab3c55bb1f2c769406a33e2c785651 all runs: crashed: BUG: unable to handle kernel paging request in fuse_dev_do_write representative crash: BUG: unable to handle kernel paging request in fuse_dev_do_write, 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 270a77dd074c65429c92e5e0b275095ef1b73d32 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b13a943e90f40e11d7b736b9f723463e081778ce3aaaf90b18d8865ab151a246 all runs: crashed: BUG: unable to handle kernel paging request in fuse_dev_do_write representative crash: BUG: unable to handle kernel paging request in fuse_dev_do_write, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 270a77dd074c65429c92e5e0b275095ef1b73d32 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f64abcdd3e78c6810d2b0d70d34faa30c5b12063171def7a2167ad1d335d6dd8 all runs: crashed: BUG: unable to handle kernel paging request in fuse_dev_do_write representative crash: BUG: unable to handle kernel paging request in fuse_dev_do_write, 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 270a77dd074c65429c92e5e0b275095ef1b73d32 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 270a77dd074c65429c92e5e0b275095ef1b73d32: 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 [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing current HEAD 274e3e96961da98fd615b0bac6b08c8cd06ad615 testing commit 274e3e96961da98fd615b0bac6b08c8cd06ad615 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b3c93cb1e15c3e1f6c9c1baf89c5bafe26afa605113b25f52f39e05ba536370e all runs: crashed: BUG: unable to handle kernel paging request in fuse_dev_do_write representative crash: BUG: unable to handle kernel paging request in fuse_dev_do_write, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 39m25.494307906s (build: 17m24.20446869s, test: 19m32.048926227s) crash still not fixed or there were kernel test errors commit msg: ANDROID: export one function for mm metrics crash: BUG: unable to handle kernel paging request in fuse_dev_do_write BUG: unable to handle page fault for address: ffff888241ad3fff #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 3401067 P4D 3401067 PUD 0 Oops: 0002 [#1] PREEMPT SMP CPU: 1 PID: 405 Comm: syz-executor.5 Not tainted 6.1.75-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:fuse_dev_do_write+0xec8/0x14e0 fs/fuse/dev.c:1938 Code: 00 00 00 41 8b 44 24 3c 3d e0 07 00 00 4c 8b ad 68 ff ff ff 75 35 83 7d 94 00 75 2f 49 8b 44 24 20 48 8b 78 70 8b 40 68 ff c8 04 07 00 49 8b 44 24 20 48 8b 90 a0 00 00 00 31 f6 e8 d1 66 eb RSP: 0018:ffffc900c0f4fcf8 EFLAGS: 00010296 RAX: 00000000ffffffff RBX: ffff888131c5b780 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff888141ad4000 RDI: ffff888141ad4000 RBP: ffffc900c0f4fdb8 R08: 0000000000000000 R09: ffffc900c0f87da8 R10: 0000000000001000 R11: 0000000000000000 R12: ffff8881222a04c0 R13: ffff888131c5b78c R14: 0000000000000000 R15: ffffc900c0f4fe00 FS: 00007f8fc39c66c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff888241ad3fff CR3: 0000000131c78000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fuse_dev_write+0x83/0xb0 fs/fuse/dev.c:1988 call_write_iter include/linux/fs.h:2258 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x331/0x3f0 fs/read_write.c:584 ksys_write+0x6c/0xd0 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __x64_sys_write+0x16/0x20 fs/read_write.c:646 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: 0033:0x7f8fc2c7c959 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:00007f8fc39c60c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f8fc2d9c050 RCX: 00007f8fc2c7c959 RDX: 0000000000000010 RSI: 00000000200042c0 RDI: 0000000000000003 RBP: 00007f8fc2cd8c88 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f8fc2d9c050 R15: 00007ffccfa21b18 Modules linked in: CR2: ffff888241ad3fff ---[ end trace 0000000000000000 ]--- RIP: 0010:fuse_dev_do_write+0xec8/0x14e0 fs/fuse/dev.c:1938 Code: 00 00 00 41 8b 44 24 3c 3d e0 07 00 00 4c 8b ad 68 ff ff ff 75 35 83 7d 94 00 75 2f 49 8b 44 24 20 48 8b 78 70 8b 40 68 ff c8 04 07 00 49 8b 44 24 20 48 8b 90 a0 00 00 00 31 f6 e8 d1 66 eb RSP: 0018:ffffc900c0f4fcf8 EFLAGS: 00010296 RAX: 00000000ffffffff RBX: ffff888131c5b780 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff888141ad4000 RDI: ffff888141ad4000 RBP: ffffc900c0f4fdb8 R08: 0000000000000000 R09: ffffc900c0f87da8 R10: 0000000000001000 R11: 0000000000000000 R12: ffff8881222a04c0 R13: ffff888131c5b78c R14: 0000000000000000 R15: ffffc900c0f4fe00 FS: 00007f8fc39c66c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff888241ad3fff CR3: 0000000131c78000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 41 8b add %al,-0x75(%rcx) 5: 44 24 3c rex.R and $0x3c,%al 8: 3d e0 07 00 00 cmp $0x7e0,%eax d: 4c 8b ad 68 ff ff ff mov -0x98(%rbp),%r13 14: 75 35 jne 0x4b 16: 83 7d 94 00 cmpl $0x0,-0x6c(%rbp) 1a: 75 2f jne 0x4b 1c: 49 8b 44 24 20 mov 0x20(%r12),%rax 21: 48 8b 78 70 mov 0x70(%rax),%rdi 25: 8b 40 68 mov 0x68(%rax),%eax 28: ff c8 dec %eax * 2a: c6 04 07 00 movb $0x0,(%rdi,%rax,1) <-- trapping instruction 2e: 49 8b 44 24 20 mov 0x20(%r12),%rax 33: 48 8b 90 a0 00 00 00 mov 0xa0(%rax),%rdx 3a: 31 f6 xor %esi,%esi 3c: e8 .byte 0xe8 3d: d1 66 eb shll -0x15(%rsi)