ci2 starts bisection 2025-01-31 09:31:02.968987875 +0000 UTC m=+64360.176155217 bisecting fixing commit since c276c53965a80f3568fcbd5e31bfe5b4cbbcc490 building syzkaller on 9ac0fdc66500475f1914254ef369b32d51adbff9 ensuring issue is reproducible on original commit c276c53965a80f3568fcbd5e31bfe5b4cbbcc490 testing commit c276c53965a80f3568fcbd5e31bfe5b4cbbcc490 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 47602ecc6727c279ca670ef14ef6e1beedeeadc8d49353b90f75ced76c34e792 all runs: crashed: general protection fault in update_sit_entry representative crash: general protection fault in update_sit_entry, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit c276c53965a80f3568fcbd5e31bfe5b4cbbcc490 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2362e0c5cefdeb00f26246288a361d938b77a5708d65aee478368e58a8f19b50 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in update_sit_entry representative crash: BUG: unable to handle kernel NULL pointer dereference in update_sit_entry, 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=6547 leaves diff=264 split chunks (needed=false): <264> split chunk #0 of len 264 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 c276c53965a80f3568fcbd5e31bfe5b4cbbcc490 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8fdbe5f3702076355406d9d6189a94de79355a0cbcf8b1c3dccc4a2d79faf611 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in update_sit_entry representative crash: BUG: unable to handle kernel NULL pointer dereference in update_sit_entry, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit c276c53965a80f3568fcbd5e31bfe5b4cbbcc490 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c8272de9292602dac12df57cf09dffef4ef9c0f539bda183a658d1b1b59835e9 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in update_sit_entry representative crash: BUG: unable to handle kernel NULL pointer dereference in update_sit_entry, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit c276c53965a80f3568fcbd5e31bfe5b4cbbcc490 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ab0a3120bc925a492f784e6211f791bed5883b603f7d596443d3c1a91138170e all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in update_sit_entry representative crash: BUG: unable to handle kernel NULL pointer dereference in update_sit_entry, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit c276c53965a80f3568fcbd5e31bfe5b4cbbcc490 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 82c8f8fba08bf2fff4ab3c2205a922479b8744586c9e4b1f6cc4d6a58657654b all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in update_sit_entry representative crash: BUG: unable to handle kernel NULL pointer dereference in update_sit_entry, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit c276c53965a80f3568fcbd5e31bfe5b4cbbcc490 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building c276c53965a80f3568fcbd5e31bfe5b4cbbcc490: net/socket.c:1245: undefined reference to `wext_handle_ioctl' net/socket.c:3447: 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 52 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_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 [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing current HEAD 554eb9d61ac0a26a19ab5837f9d0daf83c9e3fa3 testing commit 554eb9d61ac0a26a19ab5837f9d0daf83c9e3fa3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 540fcf2debc0a6428504d109bfc8628f7670cbbe931ebc45259fefca4b492a54 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in update_sit_entry representative crash: BUG: unable to handle kernel NULL pointer dereference in update_sit_entry, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h20m41.772229954s (build: 46m11.44330883s, test: 30m25.689492156s) crash still not fixed or there were kernel test errors commit msg: ANDROID: KABI macros to release excess KABI fields for use with backports crash: BUG: unable to handle kernel NULL pointer dereference in update_sit_entry BUG: kernel NULL pointer dereference, address: 0000000000000006 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 111526067 P4D 111526067 PUD 11152a067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 0 PID: 447 Comm: syz.2.15 Not tainted 6.1.124-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:f2fs_test_and_set_bit fs/f2fs/f2fs.h:2940 [inline] RIP: 0010:update_sit_entry+0x1d5/0x400 fs/f2fs/segment.c:2351 Code: 04 22 8b 5d a4 85 db 7e 7e 89 c3 44 08 eb 42 88 1c 22 41 85 c5 0f 85 40 01 00 00 41 83 bf 28 08 00 00 00 75 1f 48 8b 44 fe 18 <42> 0f b6 14 20 89 d3 44 08 eb 42 88 1c 20 41 85 d5 75 07 41 ff 8f RSP: 0018:ffffc900007ab3f0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00000000000000fc RCX: 0000000000000001 RDX: ffff888117adc180 RSI: ffff888117ba2400 RDI: 000000000000000f RBP: ffffc900007ab450 R08: 0000000000001635 R09: 0000000000000003 R10: 0000000000000002 R11: 0000000000000200 R12: 0000000000000006 R13: 0000000000000004 R14: 0000000000000003 R15: ffff888119caa000 FS: 00007ff1ef9116c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000006 CR3: 0000000110de7000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: f2fs_allocate_data_block+0x69f/0xdd0 fs/f2fs/segment.c:3368 do_write_page+0xe6/0x260 fs/f2fs/segment.c:3470 f2fs_outplace_write_data+0x67/0xb0 fs/f2fs/segment.c:3546 f2fs_do_write_data_page+0x385/0x4c0 fs/f2fs/data.c:2799 f2fs_write_single_data_page+0x4bf/0x820 fs/f2fs/data.c:2916 f2fs_write_cache_pages fs/f2fs/data.c:3168 [inline] __f2fs_write_data_pages fs/f2fs/data.c:3318 [inline] f2fs_write_data_pages+0x706/0xc70 fs/f2fs/data.c:3345 do_writepages+0xcc/0x210 mm/page-writeback.c:2494 filemap_fdatawrite_wbc+0x63/0x80 mm/filemap.c:408 __filemap_fdatawrite_range mm/filemap.c:441 [inline] filemap_write_and_wait_range+0xc9/0x160 mm/filemap.c:694 f2fs_flush_buffered_write fs/f2fs/file.c:4708 [inline] f2fs_file_write_iter+0x9df/0xc00 fs/f2fs/file.c:4916 do_iter_write+0x1cd/0x2d0 fs/read_write.c:861 vfs_iter_write+0x14/0x20 fs/read_write.c:902 iter_file_splice_write+0x279/0x420 fs/splice.c:685 do_splice_from fs/splice.c:763 [inline] direct_splice_actor+0x29/0x40 fs/splice.c:930 splice_direct_to_actor+0x134/0x2a0 fs/splice.c:885 do_splice_direct+0x7f/0xc0 fs/splice.c:973 do_sendfile+0x247/0x440 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64 fs/read_write.c:1309 [inline] __x64_sys_sendfile64+0x93/0xc0 fs/read_write.c:1309 x64_sys_call+0x140/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:41 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: 0033:0x7ff1eeb7fed9 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:00007ff1ef911058 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007ff1eed45fa0 RCX: 00007ff1eeb7fed9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000005 RBP: 00007ff1eebf3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000fffe80 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ff1eed45fa0 R15: 00007fff0728fae8 Modules linked in: CR2: 0000000000000006 ---[ end trace 0000000000000000 ]--- RIP: 0010:f2fs_test_and_set_bit fs/f2fs/f2fs.h:2940 [inline] RIP: 0010:update_sit_entry+0x1d5/0x400 fs/f2fs/segment.c:2351 Code: 04 22 8b 5d a4 85 db 7e 7e 89 c3 44 08 eb 42 88 1c 22 41 85 c5 0f 85 40 01 00 00 41 83 bf 28 08 00 00 00 75 1f 48 8b 44 fe 18 <42> 0f b6 14 20 89 d3 44 08 eb 42 88 1c 20 41 85 d5 75 07 41 ff 8f RSP: 0018:ffffc900007ab3f0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00000000000000fc RCX: 0000000000000001 RDX: ffff888117adc180 RSI: ffff888117ba2400 RDI: 000000000000000f RBP: ffffc900007ab450 R08: 0000000000001635 R09: 0000000000000003 R10: 0000000000000002 R11: 0000000000000200 R12: 0000000000000006 R13: 0000000000000004 R14: 0000000000000003 R15: ffff888119caa000 FS: 00007ff1ef9116c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000006 CR3: 0000000110de7000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 04 22 add $0x22,%al 2: 8b 5d a4 mov -0x5c(%rbp),%ebx 5: 85 db test %ebx,%ebx 7: 7e 7e jle 0x87 9: 89 c3 mov %eax,%ebx b: 44 08 eb or %r13b,%bl e: 42 88 1c 22 mov %bl,(%rdx,%r12,1) 12: 41 85 c5 test %eax,%r13d 15: 0f 85 40 01 00 00 jne 0x15b 1b: 41 83 bf 28 08 00 00 cmpl $0x0,0x828(%r15) 22: 00 23: 75 1f jne 0x44 25: 48 8b 44 fe 18 mov 0x18(%rsi,%rdi,8),%rax * 2a: 42 0f b6 14 20 movzbl (%rax,%r12,1),%edx <-- trapping instruction 2f: 89 d3 mov %edx,%ebx 31: 44 08 eb or %r13b,%bl 34: 42 88 1c 20 mov %bl,(%rax,%r12,1) 38: 41 85 d5 test %edx,%r13d 3b: 75 07 jne 0x44 3d: 41 rex.B 3e: ff .byte 0xff 3f: 8f .byte 0x8f