last executing test programs: 102.842978ms ago: executing program 3 (id=334): socket$inet6_mptcp(0xa, 0x1, 0x106) 102.767288ms ago: executing program 4 (id=335): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/rtc0', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/rtc0', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/rtc0', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/rtc0', 0x800, 0x0) 90.704388ms ago: executing program 0 (id=336): socket$inet_icmp_raw(0x2, 0x3, 0x1) 90.436968ms ago: executing program 4 (id=338): fdatasync(0xffffffffffffffff) 90.370268ms ago: executing program 2 (id=339): migrate_pages(0x0, 0x0, &(0x7f0000000000), &(0x7f0000000000)) 90.208999ms ago: executing program 4 (id=340): openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/asound/card0/oss_mixer', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/proc/asound/card0/oss_mixer', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/proc/asound/card0/oss_mixer', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/proc/asound/card0/oss_mixer', 0x800, 0x0) 89.785579ms ago: executing program 4 (id=342): getcwd(&(0x7f0000000000), 0x0) 77.909679ms ago: executing program 3 (id=343): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vcs', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/vcs', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/vcs', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/vcs', 0x800, 0x0) 77.719419ms ago: executing program 0 (id=344): syz_init_net_socket$netrom(0x6, 0x5, 0x0) 77.603509ms ago: executing program 4 (id=345): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/audio', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/audio', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/audio', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/audio', 0x800, 0x0) 77.524919ms ago: executing program 3 (id=346): mlockall(0x0) 77.431249ms ago: executing program 4 (id=347): sync() 77.306379ms ago: executing program 2 (id=349): process_mrelease(0xffffffffffffffff, 0x0) 34.658639ms ago: executing program 2 (id=350): get_mempolicy(&(0x7f0000000000), &(0x7f0000000000), 0x0, 0x0, 0x0) 34.502549ms ago: executing program 0 (id=351): socket$hf(0x13, 0x2, 0x0) 34.333689ms ago: executing program 3 (id=352): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/zero', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/zero', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/zero', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/zero', 0x800, 0x0) 34.117599ms ago: executing program 1 (id=353): syz_open_dev$sndmidi(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$sndmidi(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$sndmidi(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$sndmidi(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$sndmidi(&(0x7f0000000140), 0xa, 0x0) syz_open_dev$sndmidi(&(0x7f0000000180), 0xa, 0x1) syz_open_dev$sndmidi(&(0x7f00000001c0), 0xa, 0x2) syz_open_dev$sndmidi(&(0x7f0000000200), 0xa, 0x800) syz_open_dev$sndmidi(&(0x7f0000000240), 0x14, 0x0) syz_open_dev$sndmidi(&(0x7f0000000280), 0x14, 0x1) syz_open_dev$sndmidi(&(0x7f00000002c0), 0x14, 0x2) syz_open_dev$sndmidi(&(0x7f0000000300), 0x14, 0x800) syz_open_dev$sndmidi(&(0x7f0000000340), 0x1e, 0x0) syz_open_dev$sndmidi(&(0x7f0000000380), 0x1e, 0x1) syz_open_dev$sndmidi(&(0x7f00000003c0), 0x1e, 0x2) syz_open_dev$sndmidi(&(0x7f0000000400), 0x1e, 0x800) syz_open_dev$sndmidi(&(0x7f0000000440), 0x28, 0x0) syz_open_dev$sndmidi(&(0x7f0000000480), 0x28, 0x1) syz_open_dev$sndmidi(&(0x7f00000004c0), 0x28, 0x2) syz_open_dev$sndmidi(&(0x7f0000000500), 0x28, 0x800) 34.041439ms ago: executing program 1 (id=354): readv(0xffffffffffffffff, &(0x7f0000000000), 0x0) 33.982539ms ago: executing program 0 (id=355): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/hpet', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/hpet', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/hpet', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/hpet', 0x800, 0x0) 33.922029ms ago: executing program 1 (id=356): chdir(&(0x7f0000000000)) 33.810519ms ago: executing program 2 (id=357): exit(0x0) 33.689959ms ago: executing program 3 (id=358): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/net/tun', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/net/tun', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/net/tun', 0x800, 0x0) 1.456449ms ago: executing program 1 (id=359): ioprio_set$auto(0x0, 0x0, 0x0) 1.35022ms ago: executing program 2 (id=360): syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0) 1.1348ms ago: executing program 3 (id=361): syz_init_net_socket$rose(0xb, 0x5, 0x0) 960.9µs ago: executing program 0 (id=362): syz_open_dev$hidraw(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$hidraw(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$hidraw(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$hidraw(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$hidraw(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$hidraw(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$hidraw(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$hidraw(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$hidraw(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$hidraw(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$hidraw(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$hidraw(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$hidraw(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$hidraw(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$hidraw(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$hidraw(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$hidraw(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$hidraw(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$hidraw(&(0x7f0000000500), 0x4, 0x800) 679.92µs ago: executing program 1 (id=363): getrusage(0x0, &(0x7f0000000000)) 452.04µs ago: executing program 2 (id=364): ioperm(0x0, 0x0, 0x0) 345.029µs ago: executing program 0 (id=365): syz_init_net_socket$nfc_raw(0x27, 0x3, 0x0) 0s ago: executing program 1 (id=366): mincore(0x0, 0x0, &(0x7f0000000000)) kernel console output (not intermixed with test programs): e=1 [ 19.691883][ T29] audit: type=1400 audit(1746397831.970:80): avc: denied { siginh } for pid=3182 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.762302][ T29] audit: type=1400 audit(1746397834.060:81): avc: denied { read } for pid=2987 comm="syslogd" name="log" dev="sda1" ino=1915 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 Warning: Permanently added '10.128.0.171' (ED25519) to the list of known hosts. [ 27.607650][ T29] audit: type=1400 audit(1746397839.900:82): avc: denied { mounton } for pid=3292 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=1925 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 27.608675][ T3292] cgroup: Unknown subsys name 'net' [ 27.630503][ T29] audit: type=1400 audit(1746397839.900:83): avc: denied { mount } for pid=3292 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 [ 27.658082][ T29] audit: type=1400 audit(1746397839.930:84): avc: denied { unmount } for pid=3292 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 27.778494][ T3292] cgroup: Unknown subsys name 'cpuset' [ 27.784670][ T3292] cgroup: Unknown subsys name 'rlimit' [ 27.974900][ T29] audit: type=1400 audit(1746397840.260:85): avc: denied { setattr } for pid=3292 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 [ 27.998186][ T29] audit: type=1400 audit(1746397840.260:86): avc: denied { create } for pid=3292 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 28.018763][ T29] audit: type=1400 audit(1746397840.260:87): avc: denied { write } for pid=3292 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 28.021943][ T3295] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 28.039113][ T29] audit: type=1400 audit(1746397840.260:88): avc: denied { read } for pid=3292 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 Setting up swapspace version 1, size = 127995904 bytes [ 28.067985][ T29] audit: type=1400 audit(1746397840.280:89): avc: denied { mounton } for pid=3292 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 [ 28.092947][ T29] audit: type=1400 audit(1746397840.280:90): avc: denied { mount } for pid=3292 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 [ 28.104944][ T3292] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 28.116168][ T29] audit: type=1400 audit(1746397840.350:91): avc: denied { relabelto } for pid=3295 comm="mkswap" name="swap-file" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 29.570990][ T3605] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 29.770807][ T3663] ================================================================== [ 29.779133][ T3663] BUG: KCSAN: data-race in __xa_clear_mark / xas_find_marked [ 29.786640][ T3663] [ 29.788994][ T3663] read-write to 0xffff888106566230 of 8 bytes by task 1668 on cpu 0: [ 29.797081][ T3663] __xa_clear_mark+0xf5/0x1e0 [ 29.801792][ T3663] __folio_end_writeback+0x177/0x470 [ 29.807098][ T3663] folio_end_writeback+0xb6/0x3a0 [ 29.812141][ T3663] ext4_finish_bio+0x459/0x8c0 [ 29.817004][ T3663] ext4_release_io_end+0x9f/0x1f0 [ 29.822038][ T3663] ext4_end_io_end+0x18d/0x240 [ 29.826814][ T3663] ext4_end_io_rsv_work+0x151/0x1e0 [ 29.832025][ T3663] process_scheduled_works+0x4cb/0x9d0 [ 29.837941][ T3663] worker_thread+0x582/0x770 [ 29.842548][ T3663] kthread+0x486/0x510 [ 29.846619][ T3663] ret_from_fork+0x4b/0x60 [ 29.851052][ T3663] ret_from_fork_asm+0x1a/0x30 [ 29.855839][ T3663] [ 29.858169][ T3663] read to 0xffff888106566230 of 8 bytes by task 3663 on cpu 1: [ 29.865731][ T3663] xas_find_marked+0x218/0x620 [ 29.870510][ T3663] find_get_entry+0x5d/0x380 [ 29.875111][ T3663] filemap_get_folios_tag+0x13b/0x210 [ 29.880499][ T3663] filemap_fdatawait_keep_errors+0x6c/0x180 [ 29.886406][ T3663] sync_inodes_sb+0x39c/0x440 [ 29.891129][ T3663] sync_inodes_one_sb+0x3d/0x50 [ 29.895990][ T3663] iterate_supers+0xa2/0x140 [ 29.900611][ T3663] ksys_sync+0x5c/0xe0 [ 29.904694][ T3663] __ia32_sys_sync+0xe/0x20 [ 29.909295][ T3663] x64_sys_call+0x2e53/0x2fb0 [ 29.913998][ T3663] do_syscall_64+0xd0/0x1a0 [ 29.918513][ T3663] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 29.924421][ T3663] [ 29.926748][ T3663] value changed: 0xffffffffffffffc0 -> 0xfffffffffffff000 [ 29.933853][ T3663] [ 29.936184][ T3663] Reported by Kernel Concurrency Sanitizer on: [ 29.942445][ T3663] CPU: 1 UID: 0 PID: 3663 Comm: syz.4.347 Not tainted 6.15.0-rc4-syzkaller-00319-g14c55b7bb0a8 #0 PREEMPT(voluntary) [ 29.954779][ T3663] 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) [ 29.964842][ T3663] ==================================================================