WARNING in __debugfs_file_get
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5833 at fs/debugfs/file.c:90 __debugfs_file_get+0x5e3/0x6f0 fs/debugfs/file.c:90
Modules linked in:
CPU: 0 UID: 0 PID: 5833 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:ffffc9000407f720 EFLAGS: 00010293
RAX: ffffffff83a5b0b2 RBX: 1ffff1100469e816 RCX: ffff888030528000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000407f7d0 R08: ffffffff83a5abc7 R09: ffffffff8235b45d
R10: 0000000000000002 R11: ffffffff83a5b7b0 R12: 0000000000000000
R13: ffff8880234f40b0 R14: dffffc0000000000 R15: ffffffff8c47e761
FS: 0000555578d0a500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f42385e34c8 CR3: 000000007aa48000 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: 0033:0x7f4238584611
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:00007ffdb38432d0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000080001 RCX: 00007f4238584611
RDX: 0000000000080001 RSI: 00007f42385e34c8 RDI: 00000000ffffff9c
RBP: 00007f42385e34c8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000b
R13: 00007ffdb3843370 R14: 00007f4238601a6d R15: 0000555578d24010
</TASK>
Warning: Permanently added '10.128.0.116' (ED25519) to the list of known hosts.
2025/01/11 19:56:51 ignoring optional flag "sandboxArg"="0"
2025/01/11 19:56:51 parsed 1 programs
[ 66.323996][ T5833] ------------[ cut here ]------------
[ 66.329557][ T5833] WARNING: CPU: 0 PID: 5833 at fs/debugfs/file.c:90 __debugfs_file_get+0x5e3/0x6f0
[ 66.338964][ T5833] Modules linked in:
[ 66.342910][ T5833] CPU: 0 UID: 0 PID: 5833 Comm: syz-executor Not tainted 6.13.0-rc6-next-20250110-syzkaller-g2b88851f583d #0
[ 66.354635][ T5833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 66.364768][ T5833] RIP: 0010:__debugfs_file_get+0x5e3/0x6f0
[ 66.370648][ T5833] 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
[ 66.390410][ T5833] RSP: 0018:ffffc9000407f720 EFLAGS: 00010293
[ 66.396472][ T5833] RAX: ffffffff83a5b0b2 RBX: 1ffff1100469e816 RCX: ffff888030528000
[ 66.404484][ T5833] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 66.412542][ T5833] RBP: ffffc9000407f7d0 R08: ffffffff83a5abc7 R09: ffffffff8235b45d
[ 66.420602][ T5833] R10: 0000000000000002 R11: ffffffff83a5b7b0 R12: 0000000000000000
[ 66.428732][ T5833] R13: ffff8880234f40b0 R14: dffffc0000000000 R15: ffffffff8c47e761
[ 66.436702][ T5833] FS: 0000555578d0a500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
[ 66.445688][ T5833] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 66.452340][ T5833] CR2: 00007f42385e34c8 CR3: 000000007aa48000 CR4: 00000000003526f0
[ 66.460420][ T5833] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 66.468470][ T5833] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 66.476502][ T5833] Call Trace:
[ 66.479874][ T5833] <TASK>
[ 66.482837][ T5833] ? __warn+0x165/0x4d0
[ 66.487022][ T5833] ? __debugfs_file_get+0x5e3/0x6f0
[ 66.492472][ T5833] ? report_bug+0x2b3/0x500
[ 66.496984][ T5833] ? __debugfs_file_get+0x5e3/0x6f0
[ 66.502237][ T5833] ? handle_bug+0x60/0x90
[ 66.506584][ T5833] ? exc_invalid_op+0x1a/0x50
[ 66.511396][ T5833] ? asm_exc_invalid_op+0x1a/0x20
[ 66.516441][ T5833] ? __pfx_open_proxy_open+0x10/0x10
[ 66.521899][ T5833] ? do_dentry_open+0x65d/0x1960
[ 66.526858][ T5833] ? __debugfs_file_get+0xf7/0x6f0
[ 66.532041][ T5833] ? __debugfs_file_get+0x5e2/0x6f0
[ 66.537264][ T5833] ? __debugfs_file_get+0x5e3/0x6f0
[ 66.542536][ T5833] ? __pfx___debugfs_file_get+0x10/0x10
[ 66.548142][ T5833] ? __pfx_apparmor_file_open+0x10/0x10
[ 66.553764][ T5833] ? mnt_get_write_access+0x68/0x2b0
[ 66.559202][ T5833] ? mnt_get_write_access+0x68/0x2b0
[ 66.564533][ T5833] open_proxy_open+0x4f/0x4c0
[ 66.569294][ T5833] ? do_dentry_open+0xde0/0x1960
[ 66.574246][ T5833] ? __pfx_open_proxy_open+0x10/0x10
[ 66.579621][ T5833] do_dentry_open+0xdec/0x1960
[ 66.584403][ T5833] ? vfs_open+0x31/0x370
[ 66.588717][ T5833] vfs_open+0x3b/0x370
[ 66.592800][ T5833] path_openat+0x2c74/0x3580
[ 66.597401][ T5833] ? count_memcg_event_mm+0x94/0x420
[ 66.602733][ T5833] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 66.608829][ T5833] ? __pfx_path_openat+0x10/0x10
[ 66.613801][ T5833] do_filp_open+0x27f/0x4e0
[ 66.618344][ T5833] ? __pfx_do_filp_open+0x10/0x10
[ 66.623470][ T5833] ? do_raw_spin_lock+0x14f/0x370
[ 66.628607][ T5833] do_sys_openat2+0x13e/0x1d0
[ 66.633302][ T5833] ? __pfx_do_sys_openat2+0x10/0x10
[ 66.638578][ T5833] ? __pfx_lock_acquire+0x10/0x10
[ 66.643651][ T5833] __x64_sys_openat+0x247/0x2a0
[ 66.648576][ T5833] ? __pfx___x64_sys_openat+0x10/0x10
[ 66.653958][ T5833] ? exc_page_fault+0x590/0x8b0
[ 66.658853][ T5833] ? do_syscall_64+0xb6/0x230
[ 66.663558][ T5833] do_syscall_64+0xf3/0x230
[ 66.668171][ T5833] ? clear_bhb_loop+0x35/0x90
[ 66.672881][ T5833] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 66.678851][ T5833] RIP: 0033:0x7f4238584611
[ 66.683306][ T5833] 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
[ 66.703087][ T5833] RSP: 002b:00007ffdb38432d0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
[ 66.711553][ T5833] RAX: ffffffffffffffda RBX: 0000000000080001 RCX: 00007f4238584611
[ 66.719596][ T5833] RDX: 0000000000080001 RSI: 00007f42385e34c8 RDI: 00000000ffffff9c
[ 66.727642][ T5833] RBP: 00007f42385e34c8 R08: 0000000000000000 R09: 0000000000000000
[ 66.735619][ T5833] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000b
[ 66.743648][ T5833] R13: 00007ffdb3843370 R14: 00007f4238601a6d R15: 0000555578d24010
[ 66.751702][ T5833] </TASK>
[ 66.754833][ T5833] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 66.762111][ T5833] CPU: 0 UID: 0 PID: 5833 Comm: syz-executor Not tainted 6.13.0-rc6-next-20250110-syzkaller-g2b88851f583d #0
[ 66.773640][ T5833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 66.783769][ T5833] Call Trace:
[ 66.787037][ T5833] <TASK>
[ 66.789956][ T5833] dump_stack_lvl+0x241/0x360
[ 66.794622][ T5833] ? __pfx_dump_stack_lvl+0x10/0x10
[ 66.799806][ T5833] ? __pfx__printk+0x10/0x10
[ 66.804389][ T5833] ? _printk+0xd5/0x120
[ 66.808564][ T5833] ? __init_begin+0x41000/0x41000
[ 66.813581][ T5833] ? vscnprintf+0x5d/0x90
[ 66.817899][ T5833] panic+0x349/0x880
[ 66.821786][ T5833] ? __warn+0x174/0x4d0
[ 66.826019][ T5833] ? __pfx_panic+0x10/0x10
[ 66.830431][ T5833] __warn+0x344/0x4d0
[ 66.834399][ T5833] ? __debugfs_file_get+0x5e3/0x6f0
[ 66.839587][ T5833] report_bug+0x2b3/0x500
[ 66.843936][ T5833] ? __debugfs_file_get+0x5e3/0x6f0
[ 66.849147][ T5833] handle_bug+0x60/0x90
[ 66.853321][ T5833] exc_invalid_op+0x1a/0x50
[ 66.857826][ T5833] asm_exc_invalid_op+0x1a/0x20
[ 66.862700][ T5833] RIP: 0010:__debugfs_file_get+0x5e3/0x6f0
[ 66.868496][ T5833] 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
[ 66.888184][ T5833] RSP: 0018:ffffc9000407f720 EFLAGS: 00010293
[ 66.894237][ T5833] RAX: ffffffff83a5b0b2 RBX: 1ffff1100469e816 RCX: ffff888030528000
[ 66.902199][ T5833] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 66.910245][ T5833] RBP: ffffc9000407f7d0 R08: ffffffff83a5abc7 R09: ffffffff8235b45d
[ 66.918203][ T5833] R10: 0000000000000002 R11: ffffffff83a5b7b0 R12: 0000000000000000
[ 66.926165][ T5833] R13: ffff8880234f40b0 R14: dffffc0000000000 R15: ffffffff8c47e761
[ 66.934130][ T5833] ? __pfx_open_proxy_open+0x10/0x10
[ 66.939405][ T5833] ? do_dentry_open+0x65d/0x1960
[ 66.944324][ T5833] ? __debugfs_file_get+0xf7/0x6f0
[ 66.949421][ T5833] ? __debugfs_file_get+0x5e2/0x6f0
[ 66.954638][ T5833] ? __pfx___debugfs_file_get+0x10/0x10
[ 66.960191][ T5833] ? __pfx_apparmor_file_open+0x10/0x10
[ 66.965726][ T5833] ? mnt_get_write_access+0x68/0x2b0
[ 66.971090][ T5833] ? mnt_get_write_access+0x68/0x2b0
[ 66.976382][ T5833] open_proxy_open+0x4f/0x4c0
[ 66.981074][ T5833] ? do_dentry_open+0xde0/0x1960
[ 66.985993][ T5833] ? __pfx_open_proxy_open+0x10/0x10
[ 66.991259][ T5833] do_dentry_open+0xdec/0x1960
[ 66.996007][ T5833] ? vfs_open+0x31/0x370
[ 67.000234][ T5833] vfs_open+0x3b/0x370
[ 67.004285][ T5833] path_openat+0x2c74/0x3580
[ 67.008862][ T5833] ? count_memcg_event_mm+0x94/0x420
[ 67.014136][ T5833] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 67.020199][ T5833] ? __pfx_path_openat+0x10/0x10
[ 67.025133][ T5833] do_filp_open+0x27f/0x4e0
[ 67.029626][ T5833] ? __pfx_do_filp_open+0x10/0x10
[ 67.034635][ T5833] ? do_raw_spin_lock+0x14f/0x370
[ 67.039658][ T5833] do_sys_openat2+0x13e/0x1d0
[ 67.044412][ T5833] ? __pfx_do_sys_openat2+0x10/0x10
[ 67.049623][ T5833] ? __pfx_lock_acquire+0x10/0x10
[ 67.054635][ T5833] __x64_sys_openat+0x247/0x2a0
[ 67.059523][ T5833] ? __pfx___x64_sys_openat+0x10/0x10
[ 67.064882][ T5833] ? exc_page_fault+0x590/0x8b0
[ 67.069728][ T5833] ? do_syscall_64+0xb6/0x230
[ 67.074386][ T5833] do_syscall_64+0xf3/0x230
[ 67.078884][ T5833] ? clear_bhb_loop+0x35/0x90
[ 67.083564][ T5833] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 67.089453][ T5833] RIP: 0033:0x7f4238584611
[ 67.093869][ T5833] 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
[ 67.113472][ T5833] RSP: 002b:00007ffdb38432d0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
[ 67.121884][ T5833] RAX: ffffffffffffffda RBX: 0000000000080001 RCX: 00007f4238584611
[ 67.129854][ T5833] RDX: 0000000000080001 RSI: 00007f42385e34c8 RDI: 00000000ffffff9c
[ 67.137817][ T5833] RBP: 00007f42385e34c8 R08: 0000000000000000 R09: 0000000000000000
[ 67.145780][ T5833] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000b
[ 67.153744][ T5833] R13: 00007ffdb3843370 R14: 00007f4238601a6d R15: 0000555578d24010
[ 67.161717][ T5833] </TASK>
[ 67.164995][ T5833] Kernel Offset: disabled
[ 67.169337][ T5833] 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-build702834041=/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/ccFXoiJV.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