ci2 starts bisection 2024-09-01 01:14:09.345036891 +0000 UTC m=+116957.490033830 bisecting fixing commit since 4edafe6c0231508d09617b2359e59eaa495ad232 building syzkaller on 46eb10b79c61c4032281212d862c913683ab32a0 ensuring issue is reproducible on original commit 4edafe6c0231508d09617b2359e59eaa495ad232 testing commit 4edafe6c0231508d09617b2359e59eaa495ad232 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 24422d92c91943fe8c227482023e2b45f1d80d8154ac65ef6343b75845abb416 all runs: crashed: general protection fault in dir_rename_wrap representative crash: general protection fault in dir_rename_wrap, 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 4edafe6c0231508d09617b2359e59eaa495ad232 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 047077b5f172776269fbad8be0cf7e0a05753018e42430dbc35ab0d6839f0256 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in dir_rename_wrap representative crash: BUG: unable to handle kernel NULL pointer dereference in dir_rename_wrap, 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=4920 full=6203 leaves diff=245 split chunks (needed=false): <245> split chunk #0 of len 245 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 4edafe6c0231508d09617b2359e59eaa495ad232 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8d0cc6c317a71a8e3921020de282de4b900d5a2e77e34f4a3132cc0381b6fdf0 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in dir_rename_wrap representative crash: BUG: unable to handle kernel NULL pointer dereference in dir_rename_wrap, 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 4edafe6c0231508d09617b2359e59eaa495ad232 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6202a9be86ce515428388b5c21dc1a4c2bbf952891f71f52fe9872a1574a58a8 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in dir_rename_wrap representative crash: BUG: unable to handle kernel NULL pointer dereference in dir_rename_wrap, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 4edafe6c0231508d09617b2359e59eaa495ad232 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 357cb73ac828ae11a46f0de798415b5c86ccb9968a3b6d12a92e92843bfbcec1 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in dir_rename_wrap representative crash: BUG: unable to handle kernel NULL pointer dereference in dir_rename_wrap, 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 4edafe6c0231508d09617b2359e59eaa495ad232 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0bedce76607554cf9692a958cacf8da1afa7c4b2a043a3f6e1ee67c1911f9669 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in dir_rename_wrap representative crash: BUG: unable to handle kernel NULL pointer dereference in dir_rename_wrap, 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 4edafe6c0231508d09617b2359e59eaa495ad232 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building 4edafe6c0231508d09617b2359e59eaa495ad232: net/socket.c:1191: undefined reference to `wext_handle_ioctl' net/socket.c:3385: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:343: undefined reference to `wext_proc_exit' net/core/net-procfs.c:327: undefined reference to `wext_proc_init' minimized to 49 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 USB_XHCI_PCI_RENESAS 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing current HEAD 29d153aabd54226781d6165592fbcfa1e00e571c testing commit 29d153aabd54226781d6165592fbcfa1e00e571c gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5fd0d0a61818e95768e47a0d7fe6e2dd1de55c877f7dbfc4dc0c3b4eab3230ce all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in dir_rename_wrap representative crash: BUG: unable to handle kernel NULL pointer dereference in dir_rename_wrap, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 57m41.725166825s (build: 22m9.330397728s, test: 33m41.401809682s) crash still not fixed or there were kernel test errors commit msg: Merge 5.15.156 into android13-5.15-lts crash: BUG: unable to handle kernel NULL pointer dereference in dir_rename_wrap BUG: kernel NULL pointer dereference, address: 0000000000000008 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 11021e067 P4D 11021e067 PUD 110222067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 0 PID: 465 Comm: syz.4.19 Not tainted 5.15.156-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:dir_rename fs/incfs/vfs.c:1383 [inline] RIP: 0010:dir_rename_wrap+0xa1/0x2a0 fs/incfs/vfs.c:91 Code: 84 df 01 00 00 4c 3b 6b 18 0f 84 d5 01 00 00 4c 3b 6b 28 0f 84 cb 01 00 00 48 8b 45 88 48 85 c0 0f 84 d6 01 00 00 48 8b 40 78 <48> 8b 40 08 49 8d 7d 58 49 89 c6 48 89 85 78 ff ff ff e8 28 51 13 RSP: 0018:ffffc900004abc98 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff88811a4a0c00 RCX: 0000000000000000 RDX: 00000000ffff9d2d RSI: ffff8881025a2500 RDI: ffff88811a4a0c60 RBP: ffffc900004abd30 R08: ffff88810ac97820 R09: 0000000000000002 R10: ffffffff82c83521 R11: 0000000000000000 R12: ffff88811a4a1818 R13: ffff88810ac97b60 R14: 0000000000000000 R15: ffff88811a4a0c60 FS: 00007fb5358946c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 0000000111325000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vfs_rename+0x860/0xad0 fs/namei.c:4832 do_renameat2+0x3ad/0x590 fs/namei.c:4985 __do_sys_renameat2 fs/namei.c:5018 [inline] __se_sys_renameat2 fs/namei.c:5015 [inline] __x64_sys_renameat2+0x4c/0x60 fs/namei.c:5015 x64_sys_call+0x14e/0x990 arch/x86/include/generated/asm/syscalls_64.h:317 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fb535e0c299 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:00007fb535894048 EFLAGS: 00000246 ORIG_RAX: 000000000000013c RAX: ffffffffffffffda RBX: 00007fb535f9af80 RCX: 00007fb535e0c299 RDX: 0000000000000004 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 00007fb535e798e6 R08: 0000000000000002 R09: 0000000000000000 R10: 0000000020000080 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fb535f9af80 R15: 00007fff50d67248 Modules linked in: CR2: 0000000000000008 ---[ end trace fdbc0e11913a3f0a ]--- RIP: 0010:dir_rename fs/incfs/vfs.c:1383 [inline] RIP: 0010:dir_rename_wrap+0xa1/0x2a0 fs/incfs/vfs.c:91 Code: 84 df 01 00 00 4c 3b 6b 18 0f 84 d5 01 00 00 4c 3b 6b 28 0f 84 cb 01 00 00 48 8b 45 88 48 85 c0 0f 84 d6 01 00 00 48 8b 40 78 <48> 8b 40 08 49 8d 7d 58 49 89 c6 48 89 85 78 ff ff ff e8 28 51 13 RSP: 0018:ffffc900004abc98 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff88811a4a0c00 RCX: 0000000000000000 RDX: 00000000ffff9d2d RSI: ffff8881025a2500 RDI: ffff88811a4a0c60 RBP: ffffc900004abd30 R08: ffff88810ac97820 R09: 0000000000000002 R10: ffffffff82c83521 R11: 0000000000000000 R12: ffff88811a4a1818 R13: ffff88810ac97b60 R14: 0000000000000000 R15: ffff88811a4a0c60 FS: 00007fb5358946c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 0000000111325000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: df 01 filds (%rcx) 2: 00 00 add %al,(%rax) 4: 4c 3b 6b 18 cmp 0x18(%rbx),%r13 8: 0f 84 d5 01 00 00 je 0x1e3 e: 4c 3b 6b 28 cmp 0x28(%rbx),%r13 12: 0f 84 cb 01 00 00 je 0x1e3 18: 48 8b 45 88 mov -0x78(%rbp),%rax 1c: 48 85 c0 test %rax,%rax 1f: 0f 84 d6 01 00 00 je 0x1fb 25: 48 8b 40 78 mov 0x78(%rax),%rax * 29: 48 8b 40 08 mov 0x8(%rax),%rax <-- trapping instruction 2d: 49 8d 7d 58 lea 0x58(%r13),%rdi 31: 49 89 c6 mov %rax,%r14 34: 48 89 85 78 ff ff ff mov %rax,-0x88(%rbp) 3b: e8 .byte 0xe8 3c: 28 51 13 sub %dl,0x13(%rcx)