ci2 starts bisection 2024-07-25 03:34:43.601494407 +0000 UTC m=+39240.379410215 bisecting fixing commit since ef39f76e4d24522699750afb641330cf1fb78c9b building syzkaller on d615901c739a765329b688494cee2f8e1b5037cb ensuring issue is reproducible on original commit ef39f76e4d24522699750afb641330cf1fb78c9b testing commit ef39f76e4d24522699750afb641330cf1fb78c9b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1320c178b2cef8bd79ce534c071e7c91652faf31ce6800e933b61b683078efd1 all runs: crashed: general protection fault in fuse_atomic_open representative crash: general protection fault in fuse_atomic_open, 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 ef39f76e4d24522699750afb641330cf1fb78c9b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 71891b8b421dc9216148c71a3685dcba1cbdd76d061ebe323810707161cd8fc2 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed kconfig minimization: base=5179 full=6492 leaves diff=255 split chunks (needed=false): <255> split chunk #0 of len 255 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit ef39f76e4d24522699750afb641330cf1fb78c9b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 46a4f6d69d8aba13d38de42152bd545efa5b6cdecae986e602e78af6c9801771 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open, 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 ef39f76e4d24522699750afb641330cf1fb78c9b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5363e2359083c48d4dba62b84bd52cc4c715fb5bb1b44267327f0203cb6ebc4b all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open, 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 ef39f76e4d24522699750afb641330cf1fb78c9b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fdf8164044a8fe3f1a3c2bbcf59d8dddd93ee6581b98eb56d6bf32be8a8dde36 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit ef39f76e4d24522699750afb641330cf1fb78c9b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1e1b2404b0b04925a8328309dff4d9bfb043b456fb66799203642e1e75c04291 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open, 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 ef39f76e4d24522699750afb641330cf1fb78c9b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building ef39f76e4d24522699750afb641330cf1fb78c9b: net/socket.c:1242: undefined reference to `wext_handle_ioctl' net/socket.c:3437: 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 51 configs; suspects: [HID_ZEROPLUS 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 V4L2_ASYNC V4L2_FWNODE VIDEO_CAMERA_SENSOR 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing current HEAD dd8ee5c24218599f826f01c38edf48f69e94d32d testing commit dd8ee5c24218599f826f01c38edf48f69e94d32d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f04f8f8385ea0305e4aa0c120f160a7e1db8b16355ab103837c2621666ba22b0 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h8m33.175383763s (build: 33m32.128125259s, test: 32m2.079640597s) crash still not fixed or there were kernel test errors commit msg: UPSTREAM: of: reserved_mem: Use proper binary prefix crash: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open BUG: kernel NULL pointer dereference, address: 0000000000000038 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 111ec3067 P4D 111ec3067 PUD 111ec0067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 364 Comm: syz-executor.0 Not tainted 6.1.90-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:d_really_is_positive include/linux/dcache.h:493 [inline] RIP: 0010:fuse_atomic_open+0x8c/0x140 fs/fuse/dir.c:882 Code: ff ff 49 89 c4 48 3d 01 f0 ff ff 72 05 45 89 e6 eb 2d 4d 85 e4 4d 0f 45 fc 4c 89 f2 48 8b 4d d0 44 8b 45 cc 41 f6 c5 40 74 07 <49> 83 7f 30 00 74 20 48 89 d7 4c 89 e6 e8 02 af e9 ff 41 89 c6 44 RSP: 0018:ffffc900007d3c68 EFLAGS: 00010202 RAX: 0000000000000008 RBX: ffff88810c35b480 RCX: ffff88811382f400 RDX: ffff88810b9b7500 RSI: 0000000000000001 RDI: ffff88810c35b7d8 RBP: ffffc900007d3ca0 R08: 0000000000008000 R09: ffffffff81549170 R10: ffff888111edf880 R11: ffff888100041400 R12: 0000000000000008 R13: 0000000000008041 R14: ffff88810b9b7500 R15: 0000000000000008 FS: 00007febd72456c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000038 CR3: 0000000111ed1000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: atomic_open fs/namei.c:3346 [inline] lookup_open fs/namei.c:3454 [inline] open_last_lookups fs/namei.c:3551 [inline] path_openat+0x3e2/0xb60 fs/namei.c:3781 do_filp_open+0xad/0x150 fs/namei.c:3811 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 x64_sys_call+0x6bf/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:258 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7febd647dda9 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:00007febd72450c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007febd65ac050 RCX: 00007febd647dda9 RDX: 0000000000080041 RSI: 00000000200001c0 RDI: ffffffffffffff9c RBP: 00007febd64ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007febd65ac050 R15: 00007fff2099f9f8 Modules linked in: CR2: 0000000000000038 ---[ end trace 0000000000000000 ]--- RIP: 0010:d_really_is_positive include/linux/dcache.h:493 [inline] RIP: 0010:fuse_atomic_open+0x8c/0x140 fs/fuse/dir.c:882 Code: ff ff 49 89 c4 48 3d 01 f0 ff ff 72 05 45 89 e6 eb 2d 4d 85 e4 4d 0f 45 fc 4c 89 f2 48 8b 4d d0 44 8b 45 cc 41 f6 c5 40 74 07 <49> 83 7f 30 00 74 20 48 89 d7 4c 89 e6 e8 02 af e9 ff 41 89 c6 44 RSP: 0018:ffffc900007d3c68 EFLAGS: 00010202 RAX: 0000000000000008 RBX: ffff88810c35b480 RCX: ffff88811382f400 RDX: ffff88810b9b7500 RSI: 0000000000000001 RDI: ffff88810c35b7d8 RBP: ffffc900007d3ca0 R08: 0000000000008000 R09: ffffffff81549170 R10: ffff888111edf880 R11: ffff888100041400 R12: 0000000000000008 R13: 0000000000008041 R14: ffff88810b9b7500 R15: 0000000000000008 FS: 00007febd72456c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000038 CR3: 0000000111ed1000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 49 89 c4 mov %rax,%r12 3: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 9: 72 05 jb 0x10 b: 45 89 e6 mov %r12d,%r14d e: eb 2d jmp 0x3d 10: 4d 85 e4 test %r12,%r12 13: 4d 0f 45 fc cmovne %r12,%r15 17: 4c 89 f2 mov %r14,%rdx 1a: 48 8b 4d d0 mov -0x30(%rbp),%rcx 1e: 44 8b 45 cc mov -0x34(%rbp),%r8d 22: 41 f6 c5 40 test $0x40,%r13b 26: 74 07 je 0x2f * 28: 49 83 7f 30 00 cmpq $0x0,0x30(%r15) <-- trapping instruction 2d: 74 20 je 0x4f 2f: 48 89 d7 mov %rdx,%rdi 32: 4c 89 e6 mov %r12,%rsi 35: e8 02 af e9 ff call 0xffe9af3c 3a: 41 89 c6 mov %eax,%r14d 3d: 44 rex.R