last executing test programs:
1.195964085s ago: executing program 3 (id=179):
getegid()
1.195204906s ago: executing program 3 (id=184):
syz_open_dev$sndhw(&(0x7f0000000040), 0x0, 0x0)
syz_open_dev$sndhw(&(0x7f0000000080), 0x0, 0x1)
syz_open_dev$sndhw(&(0x7f00000000c0), 0x0, 0x2)
syz_open_dev$sndhw(&(0x7f0000000100), 0x0, 0x800)
syz_open_dev$sndhw(&(0x7f0000000140), 0xa, 0x0)
syz_open_dev$sndhw(&(0x7f0000000180), 0xa, 0x1)
syz_open_dev$sndhw(&(0x7f00000001c0), 0xa, 0x2)
syz_open_dev$sndhw(&(0x7f0000000200), 0xa, 0x800)
syz_open_dev$sndhw(&(0x7f0000000240), 0x14, 0x0)
syz_open_dev$sndhw(&(0x7f0000000280), 0x14, 0x1)
syz_open_dev$sndhw(&(0x7f00000002c0), 0x14, 0x2)
syz_open_dev$sndhw(&(0x7f0000000300), 0x14, 0x800)
syz_open_dev$sndhw(&(0x7f0000000340), 0x1e, 0x0)
syz_open_dev$sndhw(&(0x7f0000000380), 0x1e, 0x1)
syz_open_dev$sndhw(&(0x7f00000003c0), 0x1e, 0x2)
syz_open_dev$sndhw(&(0x7f0000000400), 0x1e, 0x800)
syz_open_dev$sndhw(&(0x7f0000000440), 0x28, 0x0)
syz_open_dev$sndhw(&(0x7f0000000480), 0x28, 0x1)
syz_open_dev$sndhw(&(0x7f00000004c0), 0x28, 0x2)
syz_open_dev$sndhw(&(0x7f0000000500), 0x28, 0x800)
1.178220625s ago: executing program 3 (id=190):
getrlimit(0x0, &(0x7f0000000000))
1.162174416s ago: executing program 3 (id=196):
rt_sigpending(&(0x7f0000000000), 0x0)
1.161936536s ago: executing program 3 (id=199):
newfstatat(0xffffffffffffff9c, &(0x7f0000000000), &(0x7f0000000000), 0x0)
1.143761056s ago: executing program 3 (id=203):
pause()
713.261651ms ago: executing program 1 (id=357):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/audio', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/audio', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/audio', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/audio', 0x800, 0x0)
712.454921ms ago: executing program 1 (id=360):
socket$can_bcm(0x1d, 0x2, 0x2)
690.583182ms ago: executing program 1 (id=366):
timer_gettime(0x0, &(0x7f0000000000))
690.337322ms ago: executing program 1 (id=368):
set_thread_area(&(0x7f0000000000))
667.908542ms ago: executing program 1 (id=374):
socket$pppl2tp(0x18, 0x1, 0x1)
667.422862ms ago: executing program 1 (id=377):
rt_sigreturn()
398.135315ms ago: executing program 0 (id=444):
chroot(&(0x7f0000000000))
397.726975ms ago: executing program 0 (id=447):
timer_delete(0x0)
397.407795ms ago: executing program 0 (id=450):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ocfs2_control', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ocfs2_control', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ocfs2_control', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ocfs2_control', 0x800, 0x0)
375.563636ms ago: executing program 2 (id=451):
prlimit64(0x0, 0x0, 0x0, 0x0)
375.391926ms ago: executing program 0 (id=452):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/fb1', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/fb1', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/fb1', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/fb1', 0x800, 0x0)
375.281306ms ago: executing program 2 (id=453):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/full', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/full', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/full', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/full', 0x800, 0x0)
375.197826ms ago: executing program 0 (id=454):
userfaultfd(0x0)
374.995096ms ago: executing program 2 (id=456):
syz_init_net_socket$netrom(0x6, 0x5, 0x0)
326.604786ms ago: executing program 4 (id=459):
ftruncate(0xffffffffffffffff, 0x0)
326.490606ms ago: executing program 4 (id=461):
uselib(0x0)
326.429226ms ago: executing program 2 (id=462):
readv(0xffffffffffffffff, &(0x7f0000000000), 0x0)
326.362416ms ago: executing program 4 (id=463):
getrandom(&(0x7f0000000000), 0x0, 0x0)
326.250616ms ago: executing program 2 (id=464):
socket$rds(0x15, 0x5, 0x0)
319.984836ms ago: executing program 2 (id=465):
syz_init_net_socket$llc(0x1a, 0x1, 0x0)
315.229686ms ago: executing program 0 (id=460):
mmap(&(0x7efffffff000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0)
mmap(&(0x7f0000000000/0x1000000)=nil, 0x1000000, 0x7, 0x32, 0xffffffffffffffff, 0x0)
mmap(&(0x7f0001000000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0)
270.648917ms ago: executing program 4 (id=467):
setfsgid(0x0)
270.428507ms ago: executing program 4 (id=468):
symlink(&(0x7f0000000000), &(0x7f0000000000))
76.538639ms ago: executing program 5 (id=466):
listen(0xffffffffffffffff, 0x0)
0s ago: executing program 4 (id=470):
mmap(&(0x7efffffff000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0)
mmap(&(0x7f0000000000/0x1000000)=nil, 0x1000000, 0x7, 0x32, 0xffffffffffffffff, 0x0)
mmap(&(0x7f0001000000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0)
kernel console output (not intermixed with test programs):
Warning: Permanently added '10.128.10.50' (ED25519) to the list of known hosts.
[ 27.566047][ T29] audit: type=1400 audit(1747039522.884:65): avc: denied { mounton } for pid=3302 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2022 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1
[ 27.567164][ T3302] cgroup: Unknown subsys name 'net'
[ 27.589149][ T29] audit: type=1400 audit(1747039522.884:66): avc: denied { mount } for pid=3302 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 27.617360][ T29] audit: type=1400 audit(1747039522.924:67): avc: denied { unmount } for pid=3302 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 27.753479][ T3302] cgroup: Unknown subsys name 'cpuset'
[ 27.760100][ T3302] cgroup: Unknown subsys name 'rlimit'
[ 27.952395][ T29] audit: type=1400 audit(1747039523.264:68): avc: denied { setattr } for pid=3302 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=142 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1
[ 27.978524][ T29] audit: type=1400 audit(1747039523.274:69): avc: denied { create } for pid=3302 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 28.000041][ T29] audit: type=1400 audit(1747039523.274:70): avc: denied { write } for pid=3302 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 28.020977][ T29] audit: type=1400 audit(1747039523.274:71): avc: denied { read } for pid=3302 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 28.029688][ T3307] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped).
[ 28.042538][ T29] audit: type=1400 audit(1747039523.284:72): avc: denied { mounton } for pid=3302 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1
[ 28.076328][ T29] audit: type=1400 audit(1747039523.284:73): avc: denied { mount } for pid=3302 comm="syz-executor" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1
Setting up swapspace version 1, size = 127995904 bytes
[ 28.099902][ T29] audit: type=1400 audit(1747039523.374:74): avc: denied { relabelto } for pid=3307 comm="mkswap" name="swap-file" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t"
[ 28.130260][ T3302] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 29.124418][ T3356] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list
[ 29.779071][ T3611] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list
[ 30.864994][ T3808] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality.
[ 30.969478][ T3006] ==================================================================
[ 30.977802][ T3006] BUG: KCSAN: data-race in dont_mount / lookup_fast
[ 30.984721][ T3006]
[ 30.987153][ T3006] read-write to 0xffff888106ddf240 of 4 bytes by task 3812 on cpu 1:
[ 30.995242][ T3006] dont_mount+0x2a/0x40
[ 30.999423][ T3006] vfs_unlink+0x28f/0x420
[ 31.003872][ T3006] do_unlinkat+0x28e/0x4c0
[ 31.008345][ T3006] __x64_sys_unlink+0x2e/0x40
[ 31.013163][ T3006] x64_sys_call+0x22a6/0x2fb0
[ 31.017875][ T3006] do_syscall_64+0xd0/0x1a0
[ 31.022409][ T3006] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 31.028346][ T3006]
[ 31.030683][ T3006] read to 0xffff888106ddf240 of 4 bytes by task 3006 on cpu 0:
[ 31.038429][ T3006] lookup_fast+0xf0/0x320
[ 31.043322][ T3006] walk_component+0x3f/0x220
[ 31.048017][ T3006] path_lookupat+0xfe/0x2a0
[ 31.052654][ T3006] filename_lookup+0x147/0x340
[ 31.057637][ T3006] do_readlinkat+0x7d/0x320
[ 31.062148][ T3006] __x64_sys_readlink+0x47/0x60
[ 31.067095][ T3006] x64_sys_call+0x2cf3/0x2fb0
[ 31.071783][ T3006] do_syscall_64+0xd0/0x1a0
[ 31.076470][ T3006] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 31.082468][ T3006]
[ 31.084806][ T3006] value changed: 0x00300008 -> 0x00004008
[ 31.090668][ T3006]
[ 31.093089][ T3006] Reported by Kernel Concurrency Sanitizer on:
[ 31.099261][ T3006] CPU: 0 UID: 0 PID: 3006 Comm: udevd Not tainted 6.15.0-rc6-syzkaller #0 PREEMPT(voluntary)
[ 31.109773][ T3006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
SYZFAIL: failed to recv rpc
fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor)
[ 31.120103][ T3006] ==================================================================