WARNING in ext4_convert_inline_data

cgroup: Unknown subsys name 'net'
cgroup: Unknown subsys name 'rlimit'
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4992 at fs/ext4/inline.c:2035 ext4_convert_inline_data+0x8b/0x620 fs/ext4/inline.c:2033
Modules linked in:
CPU: 1 PID: 4992 Comm: syz-executor Not tainted 6.4.0-rc5-syzkaller-00059-g2ef6c32a914b-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:ext4_convert_inline_data+0x8b/0x620 fs/ext4/inline.c:2035
Code: f1 f1 f1 00 00 00 f3 4b 89 04 2c 43 c7 44 2c 08 f3 f3 f3 f3 e8 f6 9c 50 ff 48 8d 7c 24 68 ba 10 00 00 00 31 f6 e8 e5 73 a8 ff <0f> 0b 48 89 5c 24 08 4c 8d bb a0 fd ff ff 4c 89 ff be 08 00 00 00
RSP: 0018:ffffc90003bdfc80 EFLAGS: 00010246
RAX: ffffc90003bdfce8 RBX: ffff8880754c8cb0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90003bdfcf8
RBP: ffffc90003bdfd70 R08: dffffc0000000000 R09: 0000000000000000
R10: ffffc90003bdfce8 R11: dffffc0000000001 R12: 1ffff9200077bf98
R13: dffffc0000000000 R14: ffff88802b6cb1a0 R15: 0000000000000010
FS:  00005555555e4400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fed4b750bf8 CR3: 0000000073aa8000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_fallocate+0x14c/0x1f80 fs/ext4/extents.c:4700
 vfs_fallocate+0x54b/0x6b0 fs/open.c:324
 ksys_fallocate fs/open.c:347 [inline]
 __do_sys_fallocate fs/open.c:355 [inline]
 __se_sys_fallocate fs/open.c:353 [inline]
 __x64_sys_fallocate+0xbd/0x100 fs/open.c:353
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f8bb668bc56
Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 11 b8 1d 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 90 48 83 ec 28 48 89 54 24 10 89 74 24
RSP: 002b:00007ffda9497e98 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007ffda9498528 RCX: 00007f8bb668bc56
RDX: 0000000000000000 RSI: 0000000000000010 RDI: 0000000000000003
RBP: 0000000000000003 R08: 000000000000ffff R09: 0000000000000000
R10: 0000000007a12000 R11: 0000000000000246 R12: 0000000000000060
R13: 0000000000000003 R14: 00007ffda9498f19 R15: 00007f8bb6729560
 </TASK>


Warning: Permanently added '10.128.1.34' (ECDSA) to the list of known hosts.
2023/07/02 20:26:49 fuzzer started
2023/07/02 20:26:50 connecting to host at 10.128.0.169:32889
2023/07/02 20:26:50 checking machine...
2023/07/02 20:26:50 checking revisions...
2023/07/02 20:26:50 testing simple program...
syzkaller login: [   57.223406][ T4992] cgroup: Unknown subsys name 'net'
[   57.369983][ T4992] cgroup: Unknown subsys name 'rlimit'
[   57.477551][ T4992] ------------[ cut here ]------------
[   57.483545][ T4992] WARNING: CPU: 1 PID: 4992 at fs/ext4/inline.c:2035 ext4_convert_inline_data+0x8b/0x620
[   57.493689][ T4992] Modules linked in:
[   57.497926][ T4992] CPU: 1 PID: 4992 Comm: syz-executor Not tainted 6.4.0-rc5-syzkaller-00059-g2ef6c32a914b-dirty #0
[   57.509089][ T4992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
[   57.520246][ T4992] RIP: 0010:ext4_convert_inline_data+0x8b/0x620
[   57.526593][ T4992] Code: f1 f1 f1 00 00 00 f3 4b 89 04 2c 43 c7 44 2c 08 f3 f3 f3 f3 e8 f6 9c 50 ff 48 8d 7c 24 68 ba 10 00 00 00 31 f6 e8 e5 73 a8 ff <0f> 0b 48 89 5c 24 08 4c 8d bb a0 fd ff ff 4c 89 ff be 08 00 00 00
[   57.546761][ T4992] RSP: 0018:ffffc90003bdfc80 EFLAGS: 00010246
[   57.552974][ T4992] RAX: ffffc90003bdfce8 RBX: ffff8880754c8cb0 RCX: 0000000000000000
[   57.561531][ T4992] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90003bdfcf8
[   57.569759][ T4992] RBP: ffffc90003bdfd70 R08: dffffc0000000000 R09: 0000000000000000
[   57.577719][ T4992] R10: ffffc90003bdfce8 R11: dffffc0000000001 R12: 1ffff9200077bf98
[   57.585976][ T4992] R13: dffffc0000000000 R14: ffff88802b6cb1a0 R15: 0000000000000010
[   57.594307][ T4992] FS:  00005555555e4400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
[   57.603456][ T4992] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   57.610476][ T4992] CR2: 00007fed4b750bf8 CR3: 0000000073aa8000 CR4: 00000000003506e0
[   57.618805][ T4992] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   57.627658][ T4992] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   57.636028][ T4992] Call Trace:
[   57.639319][ T4992]  <TASK>
[   57.642603][ T4992]  ? __warn+0x162/0x4a0
[   57.646971][ T4992]  ? ext4_convert_inline_data+0x8b/0x620
[   57.652855][ T4992]  ? report_bug+0x2b3/0x500
[   57.657384][ T4992]  ? ext4_convert_inline_data+0x8b/0x620
[   57.663888][ T4992]  ? handle_bug+0x3d/0x70
[   57.668518][ T4992]  ? exc_invalid_op+0x1a/0x50
[   57.673823][ T4992]  ? asm_exc_invalid_op+0x1a/0x20
[   57.678978][ T4992]  ? ext4_convert_inline_data+0x8b/0x620
[   57.684988][ T4992]  ? __might_sleep+0xc0/0xc0
[   57.689829][ T4992]  ? __down_write_common+0x161/0x200
[   57.695394][ T4992]  ? ext4_inline_data_truncate+0xcd0/0xcd0
[   57.701565][ T4992]  ext4_fallocate+0x14c/0x1f80
[   57.706550][ T4992]  ? rcu_read_lock_any_held+0xb7/0x160
[   57.712594][ T4992]  ? memalloc_retry_wait+0xb0/0xb0
[   57.717916][ T4992]  ? lockdep_hardirqs_on_prepare+0x43c/0x7a0
[   57.724596][ T4992]  vfs_fallocate+0x54b/0x6b0
[   57.729682][ T4992]  __x64_sys_fallocate+0xbd/0x100
[   57.735388][ T4992]  do_syscall_64+0x41/0xc0
[   57.740341][ T4992]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   57.746845][ T4992] RIP: 0033:0x7f8bb668bc56
[   57.751769][ T4992] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 11 b8 1d 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 90 48 83 ec 28 48 89 54 24 10 89 74 24
[   57.772846][ T4992] RSP: 002b:00007ffda9497e98 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[   57.781759][ T4992] RAX: ffffffffffffffda RBX: 00007ffda9498528 RCX: 00007f8bb668bc56
[   57.789967][ T4992] RDX: 0000000000000000 RSI: 0000000000000010 RDI: 0000000000000003
[   57.798201][ T4992] RBP: 0000000000000003 R08: 000000000000ffff R09: 0000000000000000
[   57.806367][ T4992] R10: 0000000007a12000 R11: 0000000000000246 R12: 0000000000000060
[   57.814658][ T4992] R13: 0000000000000003 R14: 00007ffda9498f19 R15: 00007f8bb6729560
[   57.823290][ T4992]  </TASK>
[   57.826521][ T4992] Kernel panic - not syncing: kernel: panic_on_warn set ...
[   57.833964][ T4992] CPU: 1 PID: 4992 Comm: syz-executor Not tainted 6.4.0-rc5-syzkaller-00059-g2ef6c32a914b-dirty #0
[   57.845196][ T4992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
[   57.855674][ T4992] Call Trace:
[   57.859032][ T4992]  <TASK>
[   57.861957][ T4992]  dump_stack_lvl+0x1e7/0x2d0
[   57.866901][ T4992]  ? nf_tcp_handle_invalid+0x650/0x650
[   57.872442][ T4992]  ? panic+0x770/0x770
[   57.876526][ T4992]  ? vscnprintf+0x5d/0x80
[   57.881219][ T4992]  panic+0x30f/0x770
[   57.885117][ T4992]  ? __warn+0x171/0x4a0
[   57.889634][ T4992]  ? __memcpy_flushcache+0x2b0/0x2b0
[   57.895378][ T4992]  __warn+0x314/0x4a0
[   57.899356][ T4992]  ? ext4_convert_inline_data+0x8b/0x620
[   57.907193][ T4992]  report_bug+0x2b3/0x500
[   57.911633][ T4992]  ? ext4_convert_inline_data+0x8b/0x620
[   57.917370][ T4992]  handle_bug+0x3d/0x70
[   57.921954][ T4992]  exc_invalid_op+0x1a/0x50
[   57.926622][ T4992]  asm_exc_invalid_op+0x1a/0x20
[   57.931498][ T4992] RIP: 0010:ext4_convert_inline_data+0x8b/0x620
[   57.938207][ T4992] Code: f1 f1 f1 00 00 00 f3 4b 89 04 2c 43 c7 44 2c 08 f3 f3 f3 f3 e8 f6 9c 50 ff 48 8d 7c 24 68 ba 10 00 00 00 31 f6 e8 e5 73 a8 ff <0f> 0b 48 89 5c 24 08 4c 8d bb a0 fd ff ff 4c 89 ff be 08 00 00 00
[   57.958797][ T4992] RSP: 0018:ffffc90003bdfc80 EFLAGS: 00010246
[   57.964895][ T4992] RAX: ffffc90003bdfce8 RBX: ffff8880754c8cb0 RCX: 0000000000000000
[   57.973155][ T4992] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90003bdfcf8
[   57.981253][ T4992] RBP: ffffc90003bdfd70 R08: dffffc0000000000 R09: 0000000000000000
[   57.989557][ T4992] R10: ffffc90003bdfce8 R11: dffffc0000000001 R12: 1ffff9200077bf98
[   57.997830][ T4992] R13: dffffc0000000000 R14: ffff88802b6cb1a0 R15: 0000000000000010
[   58.006460][ T4992]  ? __might_sleep+0xc0/0xc0
[   58.011167][ T4992]  ? __down_write_common+0x161/0x200
[   58.016568][ T4992]  ? ext4_inline_data_truncate+0xcd0/0xcd0
[   58.022859][ T4992]  ext4_fallocate+0x14c/0x1f80
[   58.027909][ T4992]  ? rcu_read_lock_any_held+0xb7/0x160
[   58.033497][ T4992]  ? memalloc_retry_wait+0xb0/0xb0
[   58.038714][ T4992]  ? lockdep_hardirqs_on_prepare+0x43c/0x7a0
[   58.044816][ T4992]  vfs_fallocate+0x54b/0x6b0
[   58.049602][ T4992]  __x64_sys_fallocate+0xbd/0x100
[   58.054797][ T4992]  do_syscall_64+0x41/0xc0
[   58.059437][ T4992]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   58.065529][ T4992] RIP: 0033:0x7f8bb668bc56
[   58.070035][ T4992] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 11 b8 1d 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 90 48 83 ec 28 48 89 54 24 10 89 74 24
[   58.091129][ T4992] RSP: 002b:00007ffda9497e98 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[   58.100434][ T4992] RAX: ffffffffffffffda RBX: 00007ffda9498528 RCX: 00007f8bb668bc56
[   58.108516][ T4992] RDX: 0000000000000000 RSI: 0000000000000010 RDI: 0000000000000003
[   58.116499][ T4992] RBP: 0000000000000003 R08: 000000000000ffff R09: 0000000000000000
[   58.124578][ T4992] R10: 0000000007a12000 R11: 0000000000000246 R12: 0000000000000060
[   58.132974][ T4992] R13: 0000000000000003 R14: 00007ffda9498f19 R15: 00007f8bb6729560
[   58.141320][ T4992]  </TASK>
[   58.144407][ T4992] Kernel Offset: disabled
[   58.149188][ T4992] 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=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="go1.20.1"
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 -fdebug-prefix-map=/tmp/go-build4011439599=/tmp/go-build -gno-record-gcc-switches"

git status (err=<nil>)
HEAD detached at 09ffe2697
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:32: run command via tools/syz-env for best compatibility, see:
Makefile:33: 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
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=09ffe269727719aad37ea8145eb57fefb0097165 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230619-164256'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=09ffe269727719aad37ea8145eb57fefb0097165 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230619-164256'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=09ffe269727719aad37ea8145eb57fefb0097165 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230619-164256'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress
mkdir -p ./bin/linux_amd64
gcc -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 -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
	-DHOSTGOOS_linux=1 -DGIT_REVISION=\"09ffe269727719aad37ea8145eb57fefb0097165\"