last executing test programs: 1.129722368s ago: executing program 1 (id=332): syz_open_dev$sndpcmc(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$sndpcmc(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000140), 0xa, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000180), 0xa, 0x1) syz_open_dev$sndpcmc(&(0x7f00000001c0), 0xa, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000200), 0xa, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000240), 0x14, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000280), 0x14, 0x1) syz_open_dev$sndpcmc(&(0x7f00000002c0), 0x14, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000300), 0x14, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000340), 0x1e, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000380), 0x1e, 0x1) syz_open_dev$sndpcmc(&(0x7f00000003c0), 0x1e, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000400), 0x1e, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000440), 0x28, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000480), 0x28, 0x1) syz_open_dev$sndpcmc(&(0x7f00000004c0), 0x28, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000500), 0x28, 0x800) 1.092365389s ago: executing program 1 (id=339): epoll_ctl$EPOLL_CTL_ADD(0xffffffffffffffff, 0x1, 0xffffffffffffffff, &(0x7f0000000000)) 1.039553102s ago: executing program 1 (id=343): faccessat(0xffffffffffffffff, &(0x7f0000000000), 0x0) 1.038924428s ago: executing program 1 (id=348): openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/kernel/yama/ptrace_scope', 0x2, 0x0) 987.966126ms ago: executing program 1 (id=353): io_getevents(0x0, 0x0, 0x0, &(0x7f0000000000), 0x0) 987.653203ms ago: executing program 1 (id=356): rt_sigreturn() 987.535767ms ago: executing program 4 (id=357): socket$inet6_udplite(0xa, 0x2, 0x88) 897.523941ms ago: executing program 4 (id=363): setfsuid(0x0) 896.95823ms ago: executing program 4 (id=366): socket$rds(0x15, 0x5, 0x0) 844.730777ms ago: executing program 4 (id=370): socket$inet_udp(0x2, 0x2, 0x0) 826.42139ms ago: executing program 4 (id=375): munlockall() 781.983857ms ago: executing program 4 (id=378): pause() 187.24518ms ago: executing program 3 (id=437): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/debug/damon/rm_contexts', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/sys/kernel/debug/damon/rm_contexts', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/kernel/debug/damon/rm_contexts', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/sys/kernel/debug/damon/rm_contexts', 0x800, 0x0) 140.646182ms ago: executing program 2 (id=441): setrlimit(0x0, &(0x7f0000000000)) 140.462311ms ago: executing program 3 (id=443): socket$inet6_sctp(0xa, 0x1, 0x84) 135.712143ms ago: executing program 2 (id=444): msync(0x0, 0x0, 0x0) 135.389014ms ago: executing program 3 (id=445): unlink(&(0x7f0000000000)) 77.089588ms ago: executing program 2 (id=447): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/debug/damon/kdamond_pid', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/sys/kernel/debug/damon/kdamond_pid', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/kernel/debug/damon/kdamond_pid', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/sys/kernel/debug/damon/kdamond_pid', 0x800, 0x0) 76.929836ms ago: executing program 3 (id=448): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/capi20', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/capi20', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/capi20', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/capi20', 0x800, 0x0) 76.742368ms ago: executing program 2 (id=449): creat(&(0x7f0000000000), 0x0) 76.493334ms ago: executing program 3 (id=451): socket$inet(0x2, 0x1, 0x0) 76.173009ms ago: executing program 2 (id=452): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/uhid', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/uhid', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/uhid', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/uhid', 0x800, 0x0) 73.424112ms ago: executing program 0 (id=453): acct(0x0) 58.995568ms ago: executing program 2 (id=454): openat2(0xffffffffffffffff, &(0x7f0000000000), &(0x7f0000000000), 0x0) 9.209065ms ago: executing program 3 (id=455): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/cuse', 0x2, 0x0) 9.113033ms ago: executing program 0 (id=456): eventfd2(0x0, 0x0) 9.065168ms ago: executing program 0 (id=457): set_robust_list(&(0x7f0000000000), 0x0) 8.95927ms ago: executing program 0 (id=458): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/mm/ksm/run', 0x1, 0x0) 8.896876ms ago: executing program 0 (id=459): preadv2(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, 0x0, 0x0) 0s ago: executing program 0 (id=460): 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) kernel console output (not intermixed with test programs): forked to background, child pid 4895 no interfaces have a carrier [ 30.421826][ T4896] 8021q: adding VLAN 0 to HW filter on device bond0 [ 30.432733][ T4896] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.250' (ED25519) to the list of known hosts. syzkaller login: [ 55.962327][ T5214] cgroup: Unknown subsys name 'net' [ 56.091667][ T5214] cgroup: Unknown subsys name 'cpuset' [ 56.100939][ T5214] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 57.400202][ T5214] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 60.697972][ T5449] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 61.614168][ T5592] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 62.363584][ T5670] mmap: syz.3.434 (5670) uses deprecated remap_file_pages() syscall. See Documentation/mm/remap_file_pages.rst. [ 62.552922][ T5690] Oops: general protection fault, probably for non-canonical address 0xdffffc000000000b: 0000 [#1] PREEMPT SMP KASAN PTI [ 62.565652][ T5690] KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f] [ 62.574192][ T5690] CPU: 1 UID: 0 PID: 5690 Comm: syz.3.455 Not tainted 6.11.0-rc7-next-20240913-syzkaller #0 [ 62.584281][ T5690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 62.594619][ T5690] RIP: 0010:fuse_get_req+0x699/0xd40 SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 62.599960][ T5690] Code: 24 50 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 d5 d1 e9 fe 48 8b 1b 48 83 c3 58 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 b8 d1 e9 fe 48 8b 1b 81 e3 00 20 [ 62.619678][ T5690] RSP: 0018:ffffc9000471f4c0 EFLAGS: 00010202 [ 62.625787][ T5690] RAX: 000000000000000b RBX: 0000000000000058 RCX: ffffffff8314a332 [ 62.633878][ T5690] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff888027d99030 [ 62.638682][ T5591] coredump: 72(syz.1.356): interrupted: fatal signal pending [ 62.641848][ T5690] RBP: ffffc9000471f5e8 R08: ffff888027d99037 R09: 1ffff11004fb3206 [ 62.649287][ T5591] coredump: 72(syz.1.356): written to core: VMAs: 17, size 53436416; core: 18321360 bytes, pos 30470144 [ 62.657229][ T5690] R10: dffffc0000000000 R11: ffffed1004fb3207 R12: ffff888027d99000 [ 62.676310][ T5690] R13: dffffc0000000000 R14: ffff88807b688840 R15: ffff888027d99000 [ 62.684372][ T5690] FS: 000055555c783500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 62.693298][ T5690] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.700053][ T5690] CR2: 00007f5544907040 CR3: 0000000030b30000 CR4: 00000000003506f0 [ 62.708014][ T5690] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.715980][ T5690] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.724030][ T5690] Call Trace: [ 62.727298][ T5690] [ 62.730221][ T5690] ? __die_body+0x5f/0xb0 [ 62.734544][ T5690] ? die_addr+0xb0/0xe0 [ 62.738687][ T5690] ? exc_general_protection+0x3dd/0x5d0 [ 62.744235][ T5690] ? asm_exc_general_protection+0x26/0x30 [ 62.749951][ T5690] ? fuse_get_req+0x602/0xd40 [ 62.754712][ T5690] ? fuse_get_req+0x699/0xd40 [ 62.759471][ T5690] ? __pfx_fuse_get_req+0x10/0x10 [ 62.764490][ T5690] fuse_simple_background+0x9d/0xb10 [ 62.769770][ T5690] ? __kmalloc_cache_noprof+0x19c/0x2c0 [ 62.775313][ T5690] cuse_channel_open+0x447/0x670 [ 62.780516][ T5690] ? __pfx_cuse_channel_open+0x10/0x10 [ 62.785976][ T5690] misc_open+0x2cc/0x340 [ 62.790294][ T5690] chrdev_open+0x521/0x600 [ 62.794705][ T5690] ? __pfx_apparmor_file_open+0x10/0x10 [ 62.800259][ T5690] ? __pfx_chrdev_open+0x10/0x10 [ 62.805187][ T5690] ? security_file_open+0x513/0x990 [ 62.810638][ T5690] ? __pfx_chrdev_open+0x10/0x10 [ 62.815569][ T5690] do_dentry_open+0x978/0x1460 [ 62.820332][ T5690] vfs_open+0x3e/0x330 [ 62.824397][ T5690] path_openat+0x2cb5/0x3b40 [ 62.828982][ T5690] ? mark_lock+0x9a/0x360 [ 62.833303][ T5690] ? __pfx_stack_trace_save+0x10/0x10 [ 62.838671][ T5690] ? __pfx_path_openat+0x10/0x10 [ 62.843601][ T5690] ? __lock_acquire+0x1384/0x2050 [ 62.848721][ T5690] do_filp_open+0x235/0x490 [ 62.853241][ T5690] ? __pfx_do_filp_open+0x10/0x10 [ 62.858264][ T5690] ? _raw_spin_unlock+0x28/0x50 [ 62.863118][ T5690] ? alloc_fd+0x5a1/0x640 [ 62.867474][ T5690] do_sys_openat2+0x13e/0x1d0 [ 62.872146][ T5690] ? __pfx_do_sys_openat2+0x10/0x10 [ 62.877348][ T5690] __x64_sys_openat+0x247/0x2a0 [ 62.882196][ T5690] ? __pfx___x64_sys_openat+0x10/0x10 [ 62.887678][ T5690] ? exc_page_fault+0x590/0x8c0 [ 62.892526][ T5690] ? do_syscall_64+0xb6/0x230 [ 62.897206][ T5690] do_syscall_64+0xf3/0x230 [ 62.901712][ T5690] ? clear_bhb_loop+0x35/0x90 [ 62.906383][ T5690] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 62.912271][ T5690] RIP: 0033:0x7f554497def9 [ 62.916707][ T5690] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 62.936781][ T5690] RSP: 002b:00007ffc6b5a9978 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 62.945209][ T5690] RAX: ffffffffffffffda RBX: 00007f5544b35f80 RCX: 00007f554497def9 [ 62.953172][ T5690] RDX: 0000000000000002 RSI: 0000000020000040 RDI: ffffffffffffff9c [ 62.961306][ T5690] RBP: 00007f55449f0b76 R08: 0000000000000000 R09: 0000000000000000 [ 62.969541][ T5690] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 62.977588][ T5690] R13: 00007f5544b35f80 R14: 00007f5544b35f80 R15: 0000000000000b44 [ 62.985555][ T5690] [ 62.988822][ T5690] Modules linked in: [ 62.993089][ T5690] ---[ end trace 0000000000000000 ]--- [ 63.020119][ T5690] RIP: 0010:fuse_get_req+0x699/0xd40 [ 63.025472][ T5690] Code: 24 50 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 d5 d1 e9 fe 48 8b 1b 48 83 c3 58 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 b8 d1 e9 fe 48 8b 1b 81 e3 00 20 [ 63.088901][ T5690] RSP: 0018:ffffc9000471f4c0 EFLAGS: 00010202 [ 63.095053][ T5690] RAX: 000000000000000b RBX: 0000000000000058 RCX: ffffffff8314a332 [ 63.119755][ T5690] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff888027d99030 [ 63.127878][ T5690] RBP: ffffc9000471f5e8 R08: ffff888027d99037 R09: 1ffff11004fb3206 [ 63.158166][ T5690] R10: dffffc0000000000 R11: ffffed1004fb3207 R12: ffff888027d99000 [ 63.166496][ T5690] R13: dffffc0000000000 R14: ffff88807b688840 R15: ffff888027d99000 [ 63.190190][ T5690] FS: 000055555c783500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 63.205988][ T5690] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.221794][ T5690] CR2: 000056505c4320b8 CR3: 0000000030b30000 CR4: 00000000003506f0 [ 63.229973][ T5690] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.238044][ T5690] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.257936][ T5690] Kernel panic - not syncing: Fatal exception [ 63.264358][ T5690] Kernel Offset: disabled [ 63.268772][ T5690] Rebooting in 86400 seconds..