last executing test programs: 430.677704ms ago: executing program 1 (id=2): symlinkat(&(0x7f0000000000), 0xffffffffffffffff, &(0x7f0000000000)) 418.028486ms ago: executing program 4 (id=5): openat(0xffffffffffffff9c, &(0x7f0000000040)='/selinux/commit_pending_bools', 0x1, 0x0) 362.953418ms ago: executing program 3 (id=4): lremovexattr(&(0x7f0000000000), &(0x7f0000000000)) 362.784084ms ago: executing program 1 (id=14): rt_tgsigqueueinfo(0x0, 0x0, 0x0, &(0x7f0000000000)) 351.944261ms ago: executing program 4 (id=16): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/input/mice', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/input/mice', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/input/mice', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/input/mice', 0x800, 0x0) 347.923288ms ago: executing program 3 (id=17): sched_setaffinity(0x0, 0x0, &(0x7f0000000000)) 291.145104ms ago: executing program 3 (id=20): socket$inet_dccp(0x2, 0x6, 0x0) 291.109302ms ago: executing program 1 (id=21): openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv4/tcp_congestion_control', 0x1, 0x0) 287.908774ms ago: executing program 3 (id=24): socket$rxrpc(0x21, 0x2, 0x0) 281.77494ms ago: executing program 4 (id=26): msync(0x0, 0x0, 0x0) 274.228539ms ago: executing program 2 (id=27): remap_file_pages(0x0, 0x0, 0x0, 0x0, 0x0) 227.341098ms ago: executing program 1 (id=28): mlockall(0x0) 227.220287ms ago: executing program 4 (id=29): 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) 227.098051ms ago: executing program 3 (id=30): openat(0xffffffffffffff9c, &(0x7f0000000040)='/selinux/avc/cache_threshold', 0x2, 0x0) 226.984169ms ago: executing program 0 (id=31): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vcsu', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/vcsu', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/vcsu', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/vcsu', 0x800, 0x0) 226.874729ms ago: executing program 4 (id=32): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/video1', 0x2, 0x0) 226.83913ms ago: executing program 1 (id=33): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/rfkill', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/rfkill', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/rfkill', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/rfkill', 0x800, 0x0) 183.489282ms ago: executing program 0 (id=35): getrandom(&(0x7f0000000000), 0x0, 0x0) 183.315637ms ago: executing program 1 (id=36): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ppp', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ppp', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ppp', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ppp', 0x800, 0x0) 183.25863ms ago: executing program 2 (id=37): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/dma_heap/system', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/dma_heap/system', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/dma_heap/system', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/dma_heap/system', 0x800, 0x0) 183.09699ms ago: executing program 4 (id=38): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/xen/evtchn', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/xen/evtchn', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/xen/evtchn', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/xen/evtchn', 0x800, 0x0) 152.833605ms ago: executing program 0 (id=39): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/md0', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/md0', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/md0', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/md0', 0x800, 0x0) 152.729453ms ago: executing program 2 (id=40): syz_open_dev$vcsa(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$vcsa(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$vcsa(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$vcsa(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$vcsa(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$vcsa(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$vcsa(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$vcsa(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$vcsa(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$vcsa(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$vcsa(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$vcsa(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$vcsa(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$vcsa(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$vcsa(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$vcsa(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$vcsa(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$vcsa(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$vcsa(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$vcsa(&(0x7f0000000500), 0x4, 0x800) 81.197786ms ago: executing program 0 (id=43): syz_open_dev$usbfs(&(0x7f0000000040), 0x1, 0x0) syz_open_dev$usbfs(&(0x7f0000000080), 0x1, 0x1) syz_open_dev$usbfs(&(0x7f00000000c0), 0x1, 0x2) syz_open_dev$usbfs(&(0x7f0000000100), 0x1, 0x800) syz_open_dev$usbfs(&(0x7f0000000140), 0xb, 0x0) syz_open_dev$usbfs(&(0x7f0000000180), 0xb, 0x1) syz_open_dev$usbfs(&(0x7f00000001c0), 0xb, 0x2) syz_open_dev$usbfs(&(0x7f0000000200), 0xb, 0x800) syz_open_dev$usbfs(&(0x7f0000000240), 0x15, 0x0) syz_open_dev$usbfs(&(0x7f0000000280), 0x15, 0x1) syz_open_dev$usbfs(&(0x7f00000002c0), 0x15, 0x2) syz_open_dev$usbfs(&(0x7f0000000300), 0x15, 0x800) syz_open_dev$usbfs(&(0x7f0000000340), 0x1f, 0x0) syz_open_dev$usbfs(&(0x7f0000000380), 0x1f, 0x1) syz_open_dev$usbfs(&(0x7f00000003c0), 0x1f, 0x2) syz_open_dev$usbfs(&(0x7f0000000400), 0x1f, 0x800) syz_open_dev$usbfs(&(0x7f0000000440), 0x29, 0x0) syz_open_dev$usbfs(&(0x7f0000000480), 0x29, 0x1) syz_open_dev$usbfs(&(0x7f00000004c0), 0x29, 0x2) syz_open_dev$usbfs(&(0x7f0000000500), 0x29, 0x800) 81.078417ms ago: executing program 2 (id=44): syz_open_dev$sndmidi(&(0x7f0000000040), 0x1, 0x0) syz_open_dev$sndmidi(&(0x7f0000000080), 0x1, 0x1) syz_open_dev$sndmidi(&(0x7f00000000c0), 0x1, 0x2) syz_open_dev$sndmidi(&(0x7f0000000100), 0x1, 0x800) syz_open_dev$sndmidi(&(0x7f0000000140), 0xb, 0x0) syz_open_dev$sndmidi(&(0x7f0000000180), 0xb, 0x1) syz_open_dev$sndmidi(&(0x7f00000001c0), 0xb, 0x2) syz_open_dev$sndmidi(&(0x7f0000000200), 0xb, 0x800) syz_open_dev$sndmidi(&(0x7f0000000240), 0x15, 0x0) syz_open_dev$sndmidi(&(0x7f0000000280), 0x15, 0x1) syz_open_dev$sndmidi(&(0x7f00000002c0), 0x15, 0x2) syz_open_dev$sndmidi(&(0x7f0000000300), 0x15, 0x800) syz_open_dev$sndmidi(&(0x7f0000000340), 0x1f, 0x0) syz_open_dev$sndmidi(&(0x7f0000000380), 0x1f, 0x1) syz_open_dev$sndmidi(&(0x7f00000003c0), 0x1f, 0x2) syz_open_dev$sndmidi(&(0x7f0000000400), 0x1f, 0x800) syz_open_dev$sndmidi(&(0x7f0000000440), 0x29, 0x0) syz_open_dev$sndmidi(&(0x7f0000000480), 0x29, 0x1) syz_open_dev$sndmidi(&(0x7f00000004c0), 0x29, 0x2) syz_open_dev$sndmidi(&(0x7f0000000500), 0x29, 0x800) 48.221643ms ago: executing program 0 (id=45): syz_open_dev$usbfs(&(0x7f0000000040), 0x2, 0x0) syz_open_dev$usbfs(&(0x7f0000000080), 0x2, 0x1) syz_open_dev$usbfs(&(0x7f00000000c0), 0x2, 0x2) syz_open_dev$usbfs(&(0x7f0000000100), 0x2, 0x800) syz_open_dev$usbfs(&(0x7f0000000140), 0xc, 0x0) syz_open_dev$usbfs(&(0x7f0000000180), 0xc, 0x1) syz_open_dev$usbfs(&(0x7f00000001c0), 0xc, 0x2) syz_open_dev$usbfs(&(0x7f0000000200), 0xc, 0x800) syz_open_dev$usbfs(&(0x7f0000000240), 0x16, 0x0) syz_open_dev$usbfs(&(0x7f0000000280), 0x16, 0x1) syz_open_dev$usbfs(&(0x7f00000002c0), 0x16, 0x2) syz_open_dev$usbfs(&(0x7f0000000300), 0x16, 0x800) syz_open_dev$usbfs(&(0x7f0000000340), 0x20, 0x0) syz_open_dev$usbfs(&(0x7f0000000380), 0x20, 0x1) syz_open_dev$usbfs(&(0x7f00000003c0), 0x20, 0x2) syz_open_dev$usbfs(&(0x7f0000000400), 0x20, 0x800) syz_open_dev$usbfs(&(0x7f0000000440), 0x2a, 0x0) syz_open_dev$usbfs(&(0x7f0000000480), 0x2a, 0x1) syz_open_dev$usbfs(&(0x7f00000004c0), 0x2a, 0x2) syz_open_dev$usbfs(&(0x7f0000000500), 0x2a, 0x800) 47.624266ms ago: executing program 2 (id=46): syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x0) syz_open_dev$sndmidi(&(0x7f0000000080), 0x2, 0x1) syz_open_dev$sndmidi(&(0x7f00000000c0), 0x2, 0x2) syz_open_dev$sndmidi(&(0x7f0000000100), 0x2, 0x800) syz_open_dev$sndmidi(&(0x7f0000000140), 0xc, 0x0) syz_open_dev$sndmidi(&(0x7f0000000180), 0xc, 0x1) syz_open_dev$sndmidi(&(0x7f00000001c0), 0xc, 0x2) syz_open_dev$sndmidi(&(0x7f0000000200), 0xc, 0x800) syz_open_dev$sndmidi(&(0x7f0000000240), 0x16, 0x0) syz_open_dev$sndmidi(&(0x7f0000000280), 0x16, 0x1) syz_open_dev$sndmidi(&(0x7f00000002c0), 0x16, 0x2) syz_open_dev$sndmidi(&(0x7f0000000300), 0x16, 0x800) syz_open_dev$sndmidi(&(0x7f0000000340), 0x20, 0x0) syz_open_dev$sndmidi(&(0x7f0000000380), 0x20, 0x1) syz_open_dev$sndmidi(&(0x7f00000003c0), 0x20, 0x2) syz_open_dev$sndmidi(&(0x7f0000000400), 0x20, 0x800) syz_open_dev$sndmidi(&(0x7f0000000440), 0x2a, 0x0) syz_open_dev$sndmidi(&(0x7f0000000480), 0x2a, 0x1) syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2a, 0x2) syz_open_dev$sndmidi(&(0x7f0000000500), 0x2a, 0x800) 612.861µs ago: executing program 0 (id=47): syz_open_dev$usbfs(&(0x7f0000000040), 0x3, 0x0) syz_open_dev$usbfs(&(0x7f0000000080), 0x3, 0x1) syz_open_dev$usbfs(&(0x7f00000000c0), 0x3, 0x2) syz_open_dev$usbfs(&(0x7f0000000100), 0x3, 0x800) syz_open_dev$usbfs(&(0x7f0000000140), 0xd, 0x0) syz_open_dev$usbfs(&(0x7f0000000180), 0xd, 0x1) syz_open_dev$usbfs(&(0x7f00000001c0), 0xd, 0x2) syz_open_dev$usbfs(&(0x7f0000000200), 0xd, 0x800) syz_open_dev$usbfs(&(0x7f0000000240), 0x17, 0x0) syz_open_dev$usbfs(&(0x7f0000000280), 0x17, 0x1) syz_open_dev$usbfs(&(0x7f00000002c0), 0x17, 0x2) syz_open_dev$usbfs(&(0x7f0000000300), 0x17, 0x800) syz_open_dev$usbfs(&(0x7f0000000340), 0x21, 0x0) syz_open_dev$usbfs(&(0x7f0000000380), 0x21, 0x1) syz_open_dev$usbfs(&(0x7f00000003c0), 0x21, 0x2) syz_open_dev$usbfs(&(0x7f0000000400), 0x21, 0x800) syz_open_dev$usbfs(&(0x7f0000000440), 0x2b, 0x0) syz_open_dev$usbfs(&(0x7f0000000480), 0x2b, 0x1) syz_open_dev$usbfs(&(0x7f00000004c0), 0x2b, 0x2) syz_open_dev$usbfs(&(0x7f0000000500), 0x2b, 0x800) 0s ago: executing program 2 (id=48): syz_open_dev$sndmidi(&(0x7f0000000040), 0x3, 0x0) syz_open_dev$sndmidi(&(0x7f0000000080), 0x3, 0x1) syz_open_dev$sndmidi(&(0x7f00000000c0), 0x3, 0x2) syz_open_dev$sndmidi(&(0x7f0000000100), 0x3, 0x800) syz_open_dev$sndmidi(&(0x7f0000000140), 0xd, 0x0) syz_open_dev$sndmidi(&(0x7f0000000180), 0xd, 0x1) syz_open_dev$sndmidi(&(0x7f00000001c0), 0xd, 0x2) syz_open_dev$sndmidi(&(0x7f0000000200), 0xd, 0x800) syz_open_dev$sndmidi(&(0x7f0000000240), 0x17, 0x0) syz_open_dev$sndmidi(&(0x7f0000000280), 0x17, 0x1) syz_open_dev$sndmidi(&(0x7f00000002c0), 0x17, 0x2) syz_open_dev$sndmidi(&(0x7f0000000300), 0x17, 0x800) syz_open_dev$sndmidi(&(0x7f0000000340), 0x21, 0x0) syz_open_dev$sndmidi(&(0x7f0000000380), 0x21, 0x1) syz_open_dev$sndmidi(&(0x7f00000003c0), 0x21, 0x2) syz_open_dev$sndmidi(&(0x7f0000000400), 0x21, 0x800) syz_open_dev$sndmidi(&(0x7f0000000440), 0x2b, 0x0) syz_open_dev$sndmidi(&(0x7f0000000480), 0x2b, 0x1) syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2b, 0x2) syz_open_dev$sndmidi(&(0x7f0000000500), 0x2b, 0x800) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.0.6' (ED25519) to the list of known hosts. [ 62.252525][ T5818] cgroup: Unknown subsys name 'net' [ 62.380979][ T5818] cgroup: Unknown subsys name 'cpuset' [ 62.389796][ T5818] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 63.755533][ T5818] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 65.825058][ T5863] mmap: syz.2.27 (5863) uses deprecated remap_file_pages() syscall. See Documentation/mm/remap_file_pages.rst. [ 66.253237][ T5878] ================================================================== [ 66.261442][ T5878] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0 [ 66.269208][ T5878] Write of size 8 at addr ffff888079d15008 by task syz-executor/5878 [ 66.277375][ T5878] [ 66.279817][ T5878] CPU: 1 UID: 0 PID: 5878 Comm: syz-executor Not tainted 6.13.0-next-20250123-syzkaller #0 [ 66.279837][ T5878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 66.279851][ T5878] Call Trace: [ 66.279858][ T5878] [ 66.279865][ T5878] dump_stack_lvl+0x241/0x360 [ 66.279890][ T5878] ? __pfx_dump_stack_lvl+0x10/0x10 [ 66.279906][ T5878] ? __pfx__printk+0x10/0x10 [ 66.279922][ T5878] ? _printk+0xd5/0x120 [ 66.279936][ T5878] ? __virt_addr_valid+0x183/0x530 [ 66.279958][ T5878] ? __virt_addr_valid+0x183/0x530 [ 66.279980][ T5878] print_report+0x169/0x550 [ 66.280004][ T5878] ? __virt_addr_valid+0x183/0x530 [ 66.280024][ T5878] ? __virt_addr_valid+0x183/0x530 [ 66.280043][ T5878] ? __virt_addr_valid+0x45f/0x530 [ 66.280062][ T5878] ? __phys_addr+0xba/0x170 [ 66.280082][ T5878] ? binder_add_device+0x5f/0xa0 [ 66.280103][ T5878] kasan_report+0x143/0x180 [ 66.280125][ T5878] ? binder_add_device+0x5f/0xa0 [ 66.280147][ T5878] binder_add_device+0x5f/0xa0 [ 66.280168][ T5878] binderfs_binder_device_create+0x7bf/0x9c0 [ 66.280192][ T5878] binderfs_fill_super+0x944/0xd90 [ 66.280215][ T5878] ? __pfx_binderfs_fill_super+0x10/0x10 [ 66.280243][ T5878] ? shrinker_register+0x160/0x230 [ 66.280264][ T5878] ? sget_fc+0x909/0x9c0 [ 66.280283][ T5878] ? __pfx_set_anon_super_fc+0x10/0x10 [ 66.280302][ T5878] ? __pfx_binderfs_fill_super+0x10/0x10 [ 66.280322][ T5878] get_tree_nodev+0xb7/0x140 [ 66.280342][ T5878] vfs_get_tree+0x90/0x2b0 [ 66.280362][ T5878] do_new_mount+0x2be/0xb40 [ 66.280380][ T5878] ? __pfx_do_new_mount+0x10/0x10 [ 66.280399][ T5878] __se_sys_mount+0x2d6/0x3c0 [ 66.280414][ T5878] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 66.280435][ T5878] ? __pfx___se_sys_mount+0x10/0x10 [ 66.280451][ T5878] ? do_syscall_64+0x100/0x230 [ 66.280469][ T5878] ? __x64_sys_mount+0x20/0xc0 [ 66.280485][ T5878] do_syscall_64+0xf3/0x230 [ 66.280501][ T5878] ? clear_bhb_loop+0x35/0x90 [ 66.280524][ T5878] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 66.280547][ T5878] RIP: 0033:0x7ff0f2b8e4ca [ 66.280566][ T5878] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 66.280579][ T5878] RSP: 002b:00007ffef54b37f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 66.280597][ T5878] RAX: ffffffffffffffda RBX: 00007ff0f2c0e663 RCX: 00007ff0f2b8e4ca [ 66.280608][ T5878] RDX: 00007ff0f2c1dd57 RSI: 00007ff0f2c0e663 RDI: 00007ff0f2c1dd57 [ 66.280619][ T5878] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 66.280629][ T5878] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff0f2c28440 [ 66.280639][ T5878] R13: 00007ffef54b3878 R14: 0000000000000009 R15: 0000000000000000 [ 66.280654][ T5878] [ 66.280660][ T5878] [ 66.554669][ T5878] Allocated by task 5832: [ 66.559074][ T5878] kasan_save_track+0x3f/0x80 [ 66.563744][ T5878] __kasan_kmalloc+0x98/0xb0 [ 66.568412][ T5878] __kmalloc_cache_noprof+0x243/0x390 [ 66.573870][ T5878] binderfs_binder_device_create+0x16c/0x9c0 [ 66.579851][ T5878] binderfs_fill_super+0x944/0xd90 [ 66.584982][ T5878] get_tree_nodev+0xb7/0x140 [ 66.589561][ T5878] vfs_get_tree+0x90/0x2b0 [ 66.593993][ T5878] do_new_mount+0x2be/0xb40 [ 66.598492][ T5878] __se_sys_mount+0x2d6/0x3c0 [ 66.603160][ T5878] do_syscall_64+0xf3/0x230 [ 66.607672][ T5878] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 66.613555][ T5878] [ 66.615865][ T5878] Freed by task 5832: [ 66.619827][ T5878] kasan_save_track+0x3f/0x80 [ 66.624583][ T5878] kasan_save_free_info+0x40/0x50 [ 66.629594][ T5878] __kasan_slab_free+0x59/0x70 [ 66.634354][ T5878] kfree+0x196/0x430 [ 66.638234][ T5878] evict+0x4e8/0x9a0 [ 66.642120][ T5878] __dentry_kill+0x20d/0x630 [ 66.646968][ T5878] shrink_kill+0xa9/0x2c0 [ 66.651383][ T5878] shrink_dentry_list+0x2c0/0x5b0 [ 66.656493][ T5878] shrink_dcache_parent+0xcb/0x3b0 [ 66.661677][ T5878] do_one_tree+0x23/0xe0 [ 66.666084][ T5878] shrink_dcache_for_umount+0xb4/0x180 [ 66.671535][ T5878] generic_shutdown_super+0x6a/0x2d0 [ 66.676926][ T5878] kill_litter_super+0x76/0xb0 [ 66.681681][ T5878] binderfs_kill_super+0x44/0x90 [ 66.686607][ T5878] deactivate_locked_super+0xc4/0x130 [ 66.691967][ T5878] cleanup_mnt+0x41f/0x4b0 [ 66.696377][ T5878] task_work_run+0x24f/0x310 [ 66.700954][ T5878] do_exit+0xa2a/0x28e0 [ 66.705122][ T5878] do_group_exit+0x207/0x2c0 [ 66.709702][ T5878] get_signal+0x16b2/0x1750 [ 66.714193][ T5878] arch_do_signal_or_restart+0x96/0x860 [ 66.719727][ T5878] syscall_exit_to_user_mode+0xce/0x340 [ 66.725259][ T5878] do_syscall_64+0x100/0x230 [ 66.729861][ T5878] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 66.735829][ T5878] [ 66.738142][ T5878] The buggy address belongs to the object at ffff888079d15000 [ 66.738142][ T5878] which belongs to the cache kmalloc-512 of size 512 [ 66.752180][ T5878] The buggy address is located 8 bytes inside of [ 66.752180][ T5878] freed 512-byte region [ffff888079d15000, ffff888079d15200) [ 66.765844][ T5878] [ 66.768220][ T5878] The buggy address belongs to the physical page: [ 66.774649][ T5878] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x79d14 [ 66.783504][ T5878] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 66.792080][ T5878] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) [ 66.799625][ T5878] page_type: f5(slab) [ 66.803591][ T5878] raw: 00fff00000000040 ffff88801ac41c80 dead000000000122 0000000000000000 [ 66.812158][ T5878] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 66.820733][ T5878] head: 00fff00000000040 ffff88801ac41c80 dead000000000122 0000000000000000 [ 66.829398][ T5878] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 66.838106][ T5878] head: 00fff00000000002 ffffea0001e74501 ffffffffffffffff 0000000000000000 [ 66.846769][ T5878] head: 0000000700000004 0000000000000000 00000000ffffffff 0000000000000000 [ 66.855463][ T5878] page dumped because: kasan: bad access detected [ 66.861888][ T5878] page_owner tracks the page as allocated [ 66.867596][ T5878] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5831, tgid 5831 (syz-executor), ts 65669144125, free_ts 61637236059 [ 66.889030][ T5878] post_alloc_hook+0x1f4/0x240 [ 66.893798][ T5878] get_page_from_freelist+0x365c/0x37a0 [ 66.899335][ T5878] __alloc_frozen_pages_noprof+0x292/0x710 [ 66.905133][ T5878] alloc_pages_mpol+0x311/0x660 [ 66.909970][ T5878] allocate_slab+0x8f/0x3a0 [ 66.914460][ T5878] ___slab_alloc+0xc27/0x14a0 [ 66.919123][ T5878] __slab_alloc+0x58/0xa0 [ 66.923530][ T5878] __kmalloc_cache_noprof+0x27b/0x390 [ 66.928922][ T5878] binderfs_binder_device_create+0x16c/0x9c0 [ 66.934897][ T5878] binderfs_fill_super+0x944/0xd90 [ 66.940009][ T5878] get_tree_nodev+0xb7/0x140 [ 66.944624][ T5878] vfs_get_tree+0x90/0x2b0 [ 66.949032][ T5878] do_new_mount+0x2be/0xb40 [ 66.953529][ T5878] __se_sys_mount+0x2d6/0x3c0 [ 66.958191][ T5878] do_syscall_64+0xf3/0x230 [ 66.963120][ T5878] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 66.969024][ T5878] page last free pid 5818 tgid 5818 stack trace: [ 66.975352][ T5878] free_unref_folios+0xe40/0x18b0 [ 66.980565][ T5878] folios_put_refs+0x76c/0x860 [ 66.985340][ T5878] free_pages_and_swap_cache+0x2e5/0x690 [ 66.990999][ T5878] tlb_flush_mmu+0x3a3/0x680 [ 66.995600][ T5878] tlb_finish_mmu+0xd4/0x200 [ 67.000186][ T5878] vms_clear_ptes+0x432/0x530 [ 67.004853][ T5878] vms_complete_munmap_vmas+0x210/0x8f0 [ 67.010401][ T5878] do_vmi_align_munmap+0x5ef/0x6f0 [ 67.015506][ T5878] do_vmi_munmap+0x24e/0x2d0 [ 67.020119][ T5878] __vm_munmap+0x372/0x510 [ 67.024558][ T5878] __x64_sys_munmap+0x60/0x70 [ 67.029244][ T5878] do_syscall_64+0xf3/0x230 [ 67.033750][ T5878] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 67.039734][ T5878] [ 67.042080][ T5878] Memory state around the buggy address: [ 67.047793][ T5878] ffff888079d14f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 67.055850][ T5878] ffff888079d14f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 67.063984][ T5878] >ffff888079d15000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 67.072116][ T5878] ^ [ 67.076452][ T5878] ffff888079d15080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 67.084511][ T5878] ffff888079d15100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 67.092645][ T5878] ================================================================== [ 67.146574][ T5878] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 67.153829][ T5878] CPU: 1 UID: 0 PID: 5878 Comm: syz-executor Not tainted 6.13.0-next-20250123-syzkaller #0 [ 67.163833][ T5878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 67.173907][ T5878] Call Trace: [ 67.177199][ T5878] [ 67.180148][ T5878] dump_stack_lvl+0x241/0x360 [ 67.184933][ T5878] ? __pfx_dump_stack_lvl+0x10/0x10 [ 67.190148][ T5878] ? __pfx__printk+0x10/0x10 [ 67.194835][ T5878] ? preempt_schedule+0xe1/0xf0 [ 67.199711][ T5878] ? vscnprintf+0x5d/0x90 [ 67.204060][ T5878] panic+0x349/0x880 [ 67.207967][ T5878] ? check_panic_on_warn+0x21/0xb0 [ 67.213097][ T5878] ? __pfx_panic+0x10/0x10 [ 67.217542][ T5878] ? _raw_spin_unlock_irqrestore+0x130/0x140 [ 67.223548][ T5878] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 67.229883][ T5878] ? print_report+0x502/0x550 [ 67.234583][ T5878] check_panic_on_warn+0x86/0xb0 [ 67.239532][ T5878] ? binder_add_device+0x5f/0xa0 [ 67.244475][ T5878] end_report+0x77/0x160 [ 67.248717][ T5878] kasan_report+0x154/0x180 [ 67.253217][ T5878] ? binder_add_device+0x5f/0xa0 [ 67.258148][ T5878] binder_add_device+0x5f/0xa0 [ 67.262914][ T5878] binderfs_binder_device_create+0x7bf/0x9c0 [ 67.268977][ T5878] binderfs_fill_super+0x944/0xd90 [ 67.274085][ T5878] ? __pfx_binderfs_fill_super+0x10/0x10 [ 67.279719][ T5878] ? shrinker_register+0x160/0x230 [ 67.284844][ T5878] ? sget_fc+0x909/0x9c0 [ 67.289082][ T5878] ? __pfx_set_anon_super_fc+0x10/0x10 [ 67.294541][ T5878] ? __pfx_binderfs_fill_super+0x10/0x10 [ 67.300173][ T5878] get_tree_nodev+0xb7/0x140 [ 67.304758][ T5878] vfs_get_tree+0x90/0x2b0 [ 67.309175][ T5878] do_new_mount+0x2be/0xb40 [ 67.313670][ T5878] ? __pfx_do_new_mount+0x10/0x10 [ 67.318685][ T5878] __se_sys_mount+0x2d6/0x3c0 [ 67.323377][ T5878] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 67.329440][ T5878] ? __pfx___se_sys_mount+0x10/0x10 [ 67.334644][ T5878] ? do_syscall_64+0x100/0x230 [ 67.339398][ T5878] ? __x64_sys_mount+0x20/0xc0 [ 67.344150][ T5878] do_syscall_64+0xf3/0x230 [ 67.348674][ T5878] ? clear_bhb_loop+0x35/0x90 [ 67.353356][ T5878] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 67.359332][ T5878] RIP: 0033:0x7ff0f2b8e4ca [ 67.363745][ T5878] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 67.383352][ T5878] RSP: 002b:00007ffef54b37f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 67.391850][ T5878] RAX: ffffffffffffffda RBX: 00007ff0f2c0e663 RCX: 00007ff0f2b8e4ca [ 67.400046][ T5878] RDX: 00007ff0f2c1dd57 RSI: 00007ff0f2c0e663 RDI: 00007ff0f2c1dd57 [ 67.408014][ T5878] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 67.415976][ T5878] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff0f2c28440 [ 67.423959][ T5878] R13: 00007ffef54b3878 R14: 0000000000000009 R15: 0000000000000000 [ 67.431957][ T5878] [ 67.435344][ T5878] Kernel Offset: disabled [ 67.439750][ T5878] Rebooting in 86400 seconds..