WARNING in __debugfs_file_get
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5829 at fs/debugfs/file.c:90 __debugfs_file_get+0x5e3/0x6f0 fs/debugfs/file.c:90
Modules linked in:
CPU: 0 UID: 0 PID: 5829 Comm: syz-executor Not tainted 6.13.0-rc6-next-20250110-syzkaller-g2b88851f583d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__debugfs_file_get+0x5e3/0x6f0 fs/debugfs/file.c:90
Code: 3f 01 48 b8 00 00 00 00 00 fc ff df 41 0f b6 44 05 00 84 c0 0f 85 e9 00 00 00 44 8b 74 24 40 e9 4f ff ff ff e8 2e 90 19 fe 90 <0f> 0b 90 b8 ea ff ff ff 4c 8b 3c 24 e9 5c ff ff ff 44 89 e9 80 e1
RSP: 0018:ffffc90003ae7720 EFLAGS: 00010293
RAX: ffffffff83a5b0b2 RBX: 1ffff11029187dbd RCX: ffff888079d90000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003ae77d0 R08: ffffffff83a5abc7 R09: ffffffff8235b45d
R10: 0000000000000002 R11: ffffffff83a5b7b0 R12: 0000000000000000
R13: ffff888148c3ede8 R14: dffffc0000000000 R15: ffffffff8c47e761
FS: 000055558a3fd500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f79c7de34c8 CR3: 000000007551c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
debugfs_file_get fs/debugfs/file.c:152 [inline]
open_proxy_open+0x4f/0x4c0 fs/debugfs/file.c:283
do_dentry_open+0xdec/0x1960 fs/open.c:955
vfs_open+0x3b/0x370 fs/open.c:1085
do_open fs/namei.c:3828 [inline]
path_openat+0x2c74/0x3580 fs/namei.c:3987
do_filp_open+0x27f/0x4e0 fs/namei.c:4014
do_sys_openat2+0x13e/0x1d0 fs/open.c:1427
do_sys_open fs/open.c:1442 [inline]
__do_sys_openat fs/open.c:1458 [inline]
__se_sys_openat fs/open.c:1453 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1453
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f79c7d84611
Code: 75 57 89 f0 25 00 00 41 00 3d 00 00 41 00 74 49 80 3d 3a 7f 1c 00 00 74 6d 89 da 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 93 00 00 00 48 8b 54 24 28 64 48 2b 14 25
RSP: 002b:00007ffd8e09b9e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000080001 RCX: 00007f79c7d84611
RDX: 0000000000080001 RSI: 00007f79c7de34c8 RDI: 00000000ffffff9c
RBP: 00007f79c7de34c8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000b
R13: 00007ffd8e09ba80 R14: 00007f79c7e01a6d R15: 000055558a417010
</TASK>
Warning: Permanently added '10.128.10.50' (ED25519) to the list of known hosts.
2025/01/11 19:38:22 ignoring optional flag "sandboxArg"="0"
2025/01/11 19:38:23 parsed 1 programs
[ 67.315362][ T5829] ------------[ cut here ]------------
[ 67.320966][ T5829] WARNING: CPU: 0 PID: 5829 at fs/debugfs/file.c:90 __debugfs_file_get+0x5e3/0x6f0
[ 67.330319][ T5829] Modules linked in:
[ 67.334252][ T5829] CPU: 0 UID: 0 PID: 5829 Comm: syz-executor Not tainted 6.13.0-rc6-next-20250110-syzkaller-g2b88851f583d #0
[ 67.345951][ T5829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 67.356082][ T5829] RIP: 0010:__debugfs_file_get+0x5e3/0x6f0
[ 67.361968][ T5829] Code: 3f 01 48 b8 00 00 00 00 00 fc ff df 41 0f b6 44 05 00 84 c0 0f 85 e9 00 00 00 44 8b 74 24 40 e9 4f ff ff ff e8 2e 90 19 fe 90 <0f> 0b 90 b8 ea ff ff ff 4c 8b 3c 24 e9 5c ff ff ff 44 89 e9 80 e1
[ 67.381712][ T5829] RSP: 0018:ffffc90003ae7720 EFLAGS: 00010293
[ 67.387930][ T5829] RAX: ffffffff83a5b0b2 RBX: 1ffff11029187dbd RCX: ffff888079d90000
[ 67.395930][ T5829] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 67.404050][ T5829] RBP: ffffc90003ae77d0 R08: ffffffff83a5abc7 R09: ffffffff8235b45d
[ 67.412094][ T5829] R10: 0000000000000002 R11: ffffffff83a5b7b0 R12: 0000000000000000
[ 67.420153][ T5829] R13: ffff888148c3ede8 R14: dffffc0000000000 R15: ffffffff8c47e761
[ 67.428356][ T5829] FS: 000055558a3fd500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
[ 67.437336][ T5829] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 67.444111][ T5829] CR2: 00007f79c7de34c8 CR3: 000000007551c000 CR4: 00000000003526f0
[ 67.452148][ T5829] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 67.460260][ T5829] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 67.468406][ T5829] Call Trace:
[ 67.471700][ T5829] <TASK>
[ 67.474623][ T5829] ? __warn+0x165/0x4d0
[ 67.478847][ T5829] ? __debugfs_file_get+0x5e3/0x6f0
[ 67.484062][ T5829] ? report_bug+0x2b3/0x500
[ 67.488622][ T5829] ? __debugfs_file_get+0x5e3/0x6f0
[ 67.493882][ T5829] ? handle_bug+0x60/0x90
[ 67.498362][ T5829] ? exc_invalid_op+0x1a/0x50
[ 67.503061][ T5829] ? asm_exc_invalid_op+0x1a/0x20
[ 67.508171][ T5829] ? __pfx_open_proxy_open+0x10/0x10
[ 67.513692][ T5829] ? do_dentry_open+0x65d/0x1960
[ 67.518699][ T5829] ? __debugfs_file_get+0xf7/0x6f0
[ 67.523825][ T5829] ? __debugfs_file_get+0x5e2/0x6f0
[ 67.529093][ T5829] ? __debugfs_file_get+0x5e3/0x6f0
[ 67.534309][ T5829] ? __pfx___debugfs_file_get+0x10/0x10
[ 67.540015][ T5829] ? __pfx_apparmor_file_open+0x10/0x10
[ 67.545675][ T5829] ? mnt_get_write_access+0x68/0x2b0
[ 67.551119][ T5829] ? mnt_get_write_access+0x68/0x2b0
[ 67.556489][ T5829] open_proxy_open+0x4f/0x4c0
[ 67.561285][ T5829] ? do_dentry_open+0xde0/0x1960
[ 67.566227][ T5829] ? __pfx_open_proxy_open+0x10/0x10
[ 67.571649][ T5829] do_dentry_open+0xdec/0x1960
[ 67.576567][ T5829] ? vfs_open+0x31/0x370
[ 67.580829][ T5829] vfs_open+0x3b/0x370
[ 67.584928][ T5829] path_openat+0x2c74/0x3580
[ 67.589698][ T5829] ? count_memcg_event_mm+0x94/0x420
[ 67.595099][ T5829] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 67.601184][ T5829] ? __pfx_path_openat+0x10/0x10
[ 67.606145][ T5829] do_filp_open+0x27f/0x4e0
[ 67.610799][ T5829] ? __pfx_do_filp_open+0x10/0x10
[ 67.615866][ T5829] ? do_raw_spin_lock+0x14f/0x370
[ 67.621000][ T5829] do_sys_openat2+0x13e/0x1d0
[ 67.625715][ T5829] ? __pfx_do_sys_openat2+0x10/0x10
[ 67.631007][ T5829] ? __pfx_lock_acquire+0x10/0x10
[ 67.636095][ T5829] __x64_sys_openat+0x247/0x2a0
[ 67.641001][ T5829] ? __pfx___x64_sys_openat+0x10/0x10
[ 67.646437][ T5829] ? exc_page_fault+0x590/0x8b0
[ 67.651393][ T5829] ? do_syscall_64+0xb6/0x230
[ 67.656082][ T5829] do_syscall_64+0xf3/0x230
[ 67.660645][ T5829] ? clear_bhb_loop+0x35/0x90
[ 67.665351][ T5829] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 67.671330][ T5829] RIP: 0033:0x7f79c7d84611
[ 67.676195][ T5829] Code: 75 57 89 f0 25 00 00 41 00 3d 00 00 41 00 74 49 80 3d 3a 7f 1c 00 00 74 6d 89 da 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 93 00 00 00 48 8b 54 24 28 64 48 2b 14 25
[ 67.695871][ T5829] RSP: 002b:00007ffd8e09b9e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
[ 67.704339][ T5829] RAX: ffffffffffffffda RBX: 0000000000080001 RCX: 00007f79c7d84611
[ 67.712358][ T5829] RDX: 0000000000080001 RSI: 00007f79c7de34c8 RDI: 00000000ffffff9c
[ 67.720375][ T5829] RBP: 00007f79c7de34c8 R08: 0000000000000000 R09: 0000000000000000
[ 67.728387][ T5829] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000b
[ 67.736544][ T5829] R13: 00007ffd8e09ba80 R14: 00007f79c7e01a6d R15: 000055558a417010
[ 67.744605][ T5829] </TASK>
[ 67.747705][ T5829] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 67.755020][ T5829] CPU: 0 UID: 0 PID: 5829 Comm: syz-executor Not tainted 6.13.0-rc6-next-20250110-syzkaller-g2b88851f583d #0
[ 67.766576][ T5829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 67.776738][ T5829] Call Trace:
[ 67.780010][ T5829] <TASK>
[ 67.782944][ T5829] dump_stack_lvl+0x241/0x360
[ 67.787794][ T5829] ? __pfx_dump_stack_lvl+0x10/0x10
[ 67.793068][ T5829] ? __pfx__printk+0x10/0x10
[ 67.797651][ T5829] ? _printk+0xd5/0x120
[ 67.801797][ T5829] ? __init_begin+0x41000/0x41000
[ 67.806841][ T5829] ? vscnprintf+0x5d/0x90
[ 67.811186][ T5829] panic+0x349/0x880
[ 67.815089][ T5829] ? __warn+0x174/0x4d0
[ 67.819251][ T5829] ? __pfx_panic+0x10/0x10
[ 67.823679][ T5829] __warn+0x344/0x4d0
[ 67.827665][ T5829] ? __debugfs_file_get+0x5e3/0x6f0
[ 67.832884][ T5829] report_bug+0x2b3/0x500
[ 67.837203][ T5829] ? __debugfs_file_get+0x5e3/0x6f0
[ 67.842398][ T5829] handle_bug+0x60/0x90
[ 67.846553][ T5829] exc_invalid_op+0x1a/0x50
[ 67.851138][ T5829] asm_exc_invalid_op+0x1a/0x20
[ 67.856009][ T5829] RIP: 0010:__debugfs_file_get+0x5e3/0x6f0
[ 67.861926][ T5829] Code: 3f 01 48 b8 00 00 00 00 00 fc ff df 41 0f b6 44 05 00 84 c0 0f 85 e9 00 00 00 44 8b 74 24 40 e9 4f ff ff ff e8 2e 90 19 fe 90 <0f> 0b 90 b8 ea ff ff ff 4c 8b 3c 24 e9 5c ff ff ff 44 89 e9 80 e1
[ 67.881722][ T5829] RSP: 0018:ffffc90003ae7720 EFLAGS: 00010293
[ 67.887824][ T5829] RAX: ffffffff83a5b0b2 RBX: 1ffff11029187dbd RCX: ffff888079d90000
[ 67.895789][ T5829] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 67.903750][ T5829] RBP: ffffc90003ae77d0 R08: ffffffff83a5abc7 R09: ffffffff8235b45d
[ 67.911887][ T5829] R10: 0000000000000002 R11: ffffffff83a5b7b0 R12: 0000000000000000
[ 67.919855][ T5829] R13: ffff888148c3ede8 R14: dffffc0000000000 R15: ffffffff8c47e761
[ 67.927848][ T5829] ? __pfx_open_proxy_open+0x10/0x10
[ 67.933127][ T5829] ? do_dentry_open+0x65d/0x1960
[ 67.938055][ T5829] ? __debugfs_file_get+0xf7/0x6f0
[ 67.943155][ T5829] ? __debugfs_file_get+0x5e2/0x6f0
[ 67.948361][ T5829] ? __pfx___debugfs_file_get+0x10/0x10
[ 67.953904][ T5829] ? __pfx_apparmor_file_open+0x10/0x10
[ 67.959448][ T5829] ? mnt_get_write_access+0x68/0x2b0
[ 67.964750][ T5829] ? mnt_get_write_access+0x68/0x2b0
[ 67.970034][ T5829] open_proxy_open+0x4f/0x4c0
[ 67.974748][ T5829] ? do_dentry_open+0xde0/0x1960
[ 67.979677][ T5829] ? __pfx_open_proxy_open+0x10/0x10
[ 67.984959][ T5829] do_dentry_open+0xdec/0x1960
[ 67.989720][ T5829] ? vfs_open+0x31/0x370
[ 67.993956][ T5829] vfs_open+0x3b/0x370
[ 67.998201][ T5829] path_openat+0x2c74/0x3580
[ 68.002787][ T5829] ? count_memcg_event_mm+0x94/0x420
[ 68.008065][ T5829] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 68.014053][ T5829] ? __pfx_path_openat+0x10/0x10
[ 68.018996][ T5829] do_filp_open+0x27f/0x4e0
[ 68.023496][ T5829] ? __pfx_do_filp_open+0x10/0x10
[ 68.028538][ T5829] ? do_raw_spin_lock+0x14f/0x370
[ 68.033573][ T5829] do_sys_openat2+0x13e/0x1d0
[ 68.038266][ T5829] ? __pfx_do_sys_openat2+0x10/0x10
[ 68.043482][ T5829] ? __pfx_lock_acquire+0x10/0x10
[ 68.048533][ T5829] __x64_sys_openat+0x247/0x2a0
[ 68.053396][ T5829] ? __pfx___x64_sys_openat+0x10/0x10
[ 68.058765][ T5829] ? exc_page_fault+0x590/0x8b0
[ 68.063705][ T5829] ? do_syscall_64+0xb6/0x230
[ 68.068378][ T5829] do_syscall_64+0xf3/0x230
[ 68.072873][ T5829] ? clear_bhb_loop+0x35/0x90
[ 68.077565][ T5829] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.083450][ T5829] RIP: 0033:0x7f79c7d84611
[ 68.087930][ T5829] Code: 75 57 89 f0 25 00 00 41 00 3d 00 00 41 00 74 49 80 3d 3a 7f 1c 00 00 74 6d 89 da 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 93 00 00 00 48 8b 54 24 28 64 48 2b 14 25
[ 68.107531][ T5829] RSP: 002b:00007ffd8e09b9e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
[ 68.116026][ T5829] RAX: ffffffffffffffda RBX: 0000000000080001 RCX: 00007f79c7d84611
[ 68.123989][ T5829] RDX: 0000000000080001 RSI: 00007f79c7de34c8 RDI: 00000000ffffff9c
[ 68.131976][ T5829] RBP: 00007f79c7de34c8 R08: 0000000000000000 R09: 0000000000000000
[ 68.140028][ T5829] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000b
[ 68.148002][ T5829] R13: 00007ffd8e09ba80 R14: 00007f79c7e01a6d R15: 000055558a417010
[ 68.155972][ T5829] </TASK>
[ 68.159293][ T5829] Kernel Offset: disabled
[ 68.163653][ T5829] Rebooting in 86400 seconds..
syzkaller build log:
go env (err=<nil>)
GO111MODULE='auto'
GOARCH='amd64'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs-2/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.22.7'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build2125914570=/tmp/go-build -gno-record-gcc-switches'
git status (err=<nil>)
HEAD detached at d3ccff637
nothing to commit, working tree clean
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
go fmt ./sys/... >/dev/null
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=d3ccff6372e07c6aabd02b5da419aa6492b5f0ad -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241226-091248'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
mkdir -p ./bin/linux_amd64
g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \
-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"d3ccff6372e07c6aabd02b5da419aa6492b5f0ad\"
/usr/bin/ld: /tmp/ccJ2JKt3.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking