------------[ cut here ]------------ WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#1: syz-executor.7/285 Modules linked in: CPU: 1 UID: 0 PID: 285 Comm: syz-executor.7 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:mntput_no_expire+0x78e/0xbe0 Code: 05 16 42 81 04 01 e8 31 f8 91 ff e9 41 fc ff ff e8 b7 50 b4 ff 31 ff 44 89 ee e8 dd 4b b4 ff 45 85 ed 79 09 e8 a3 50 b4 ff 90 <0f> 0b 90 e8 9a 50 b4 ff e8 75 f6 fb 02 31 ff 89 c5 89 c6 e8 ba 4b RSP: 0018:ffff888015abfce0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 1ffff11002b57fa1 RCX: ffffffff81bf96d3 RDX: ffff8880155b9b80 RSI: ffffffff81bf96dd RDI: 0000000000000005 RBP: ffff888035388540 R08: 0000000000000001 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000001 R12: ffff888015abfd48 R13: 00000000ffffffff R14: ffff888035388540 R15: ffff888035388628 FS: 000055556d33d400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffce306ec58 CR3: 0000000040bcd000 CR4: 0000000000350ef0 Call Trace: path_umount+0x6e0/0x1100 __x64_sys_umount+0x15c/0x190 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7b9b4f1f87 Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffce306f398 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007f7b9b4f1f87 RDX: 00007ffce306f469 RSI: 000000000000000a RDI: 00007ffce306f460 RBP: 00007ffce306f460 R08: 00000000ffffffff R09: 00007ffce306f230 R10: 000055556d33ec7b R11: 0000000000000202 R12: 00007f7b9b54a105 R13: 00007ffce3070520 R14: 000055556d33ec20 R15: 00007ffce3070560 irq event stamp: 189695 hardirqs last enabled at (189703): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (189712): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (189666): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (189413): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- random: crng reseeded on system resumption random: crng reseeded on system resumption ------------[ cut here ]------------ WARNING: fs/namespace.c:1375 at cleanup_mnt+0x33f/0x430, CPU#1: syz-executor.7/285 Modules linked in: CPU: 1 UID: 0 PID: 285 Comm: syz-executor.7 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:cleanup_mnt+0x33f/0x430 Code: c7 a0 45 d1 85 e8 01 7c fa 02 49 8d 7d 40 5b 48 c7 c6 10 e2 be 81 5d 41 5c 41 5d 41 5e 41 5f e9 57 b3 9c ff e8 82 46 b4 ff 90 <0f> 0b 90 e9 e6 fc ff ff e8 74 46 b4 ff 4c 89 ef e8 6c d7 06 00 e9 RSP: 0018:ffff888015abfe20 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81bf9de5 RDX: ffff8880155b9b80 RSI: ffffffff81bfa0fe RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880155ba458 R13: ffff888035388540 R14: 0000000000000001 R15: ffff888035388580 FS: 000055556d33d400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe59ae2a3a4 CR3: 0000000040bcd000 CR4: 0000000000350ef0 Call Trace: task_work_run+0x172/0x280 exit_to_user_mode_loop+0xef/0x110 do_syscall_64+0x2f7/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7b9b4f1f87 Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffce306f398 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000016 RCX: 00007f7b9b4f1f87 RDX: 00007ffce306f469 RSI: 000000000000000a RDI: 00007ffce306f460 RBP: 00007ffce306f460 R08: 00000000ffffffff R09: 00007ffce306f230 R10: 000055556d33ec7b R11: 0000000000000202 R12: 00007f7b9b54a105 R13: 00007ffce3070520 R14: 000055556d33ec20 R15: 00007ffce3070560 irq event stamp: 190383 hardirqs last enabled at (190393): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (190400): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (190130): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (190081): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list No source specified No source specified FAT-fs (loop0): bogus number of reserved sectors FAT-fs (loop0): Can't find a valid FAT filesystem random: crng reseeded on system resumption 9pnet_fd: Insufficient options for proto=fd random: crng reseeded on system resumption 9pnet_fd: Insufficient options for proto=fd 9pnet_fd: Insufficient options for proto=fd random: crng reseeded on system resumption 9pnet_fd: Insufficient options for proto=fd random: crng reseeded on system resumption 9pnet_fd: Insufficient options for proto=fd random: crng reseeded on system resumption program syz-executor.3 is using a deprecated SCSI ioctl, please convert it to SG_IO audit: type=1400 audit(1756472019.624:11): avc: denied { read } for pid=4166 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 audit: type=1400 audit(1756472019.624:12): avc: denied { write } for pid=4166 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 kmemleak: Found object by alias at 0x607f1a639a20 CPU: 0 UID: 0 PID: 4164 Comm: syz-executor.2 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xca/0x120 __lookup_object+0x94/0xb0 delete_object_full+0x27/0x70 free_percpu+0x30/0x1160 futex_hash_free+0x38/0xc0 mmput+0x2d3/0x390 do_exit+0x79d/0x2970 do_group_exit+0xd3/0x2a0 __x64_sys_exit_group+0x3e/0x50 x64_sys_call+0x18c5/0x18d0 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8648a38b19 Code: Unable to access opcode bytes at 0x7f8648a38aef. RSP: 002b:00007ffef49c9528 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007f8648a38b19 RDX: 00007f86489eb72b RSI: ffffffffffffffbc RDI: 0000000000000000 RBP: 0000000000000000 R08: 00007f8648b50128 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffef49c9610 kmemleak: Object (percpu) 0x607f1a639a1c (size 8): kmemleak: comm "syz-executor.1", pid 4170, jiffies 4294792458 kmemleak: min_count = 1 kmemleak: count = 0 kmemleak: flags = 0x21 kmemleak: checksum = 0 kmemleak: backtrace: pcpu_alloc_noprof+0x87a/0x1170 alloc_vfsmnt+0x135/0x6e0 vfs_create_mount.part.0+0x40/0x440 __do_sys_fsmount+0x43e/0x950 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f loop0: detected capacity change from 0 to 512 EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. ext4 filesystem being mounted at /syzkaller-testdir924582749/syzkaller.eEBLG4/14/file0 supports timestamps until 2038-01-19 (0x7fffffff) EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop0: detected capacity change from 0 to 512 EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. ext4 filesystem being mounted at /syzkaller-testdir924582749/syzkaller.eEBLG4/15/file0 supports timestamps until 2038-01-19 (0x7fffffff) EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop0: detected capacity change from 0 to 512 mac80211_hwsim hwsim17 wlan1: entered promiscuous mode mac80211_hwsim hwsim17 wlan1: left promiscuous mode EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. mac80211_hwsim hwsim17 wlan1: entered promiscuous mode ext4 filesystem being mounted at /syzkaller-testdir924582749/syzkaller.eEBLG4/16/file0 supports timestamps until 2038-01-19 (0x7fffffff) mac80211_hwsim hwsim17 wlan1: left promiscuous mode FAT-fs (loop1): bogus logical sector size 11416 FAT-fs (loop1): Can't find a valid FAT filesystem EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. FAT-fs (loop1): bogus logical sector size 11416 FAT-fs (loop1): Can't find a valid FAT filesystem loop0: detected capacity change from 0 to 512 EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. FAT-fs (loop1): bogus logical sector size 11416 FAT-fs (loop1): Can't find a valid FAT filesystem ext4 filesystem being mounted at /syzkaller-testdir924582749/syzkaller.eEBLG4/17/file0 supports timestamps until 2038-01-19 (0x7fffffff) EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. SELinux: Context system_u:object_r: is not valid (left unmapped). audit: type=1400 audit(1756472021.733:13): avc: denied { associate } for pid=4321 comm="syz-executor.5" name="tty1" dev="devtmpfs" ino=21 scontext=system_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:device_t:s0 tclass=filesystem permissive=1 srawcon="system_u:object_r:" FAT-fs (loop1): bogus logical sector size 11416 FAT-fs (loop1): Can't find a valid FAT filesystem FAT-fs (loop1): bogus logical sector size 11416 FAT-fs (loop1): Can't find a valid FAT filesystem netlink: 16 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.0'. sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 40 00 I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 1, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 2, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 3 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 3, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 4, async page read loop4: detected capacity change from 0 to 4 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 5 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 5, async page read EXT4-fs (loop4): unsupported descriptor size 0 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 6 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 loop4: detected capacity change from 0 to 4 Buffer I/O error on dev sr0, logical block 6, async page read EXT4-fs (loop4): unsupported descriptor size 0 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 7 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 7, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer Buffer I/O error on dev sr0, logical block 1, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer loop4: detected capacity change from 0 to 4 EXT4-fs (loop4): unsupported descriptor size 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 40 00 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer loop4: detected capacity change from 0 to 4 EXT4-fs (loop4): unsupported descriptor size 0 loop4: detected capacity change from 0 to 4 EXT4-fs (loop4): unsupported descriptor size 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 40 00 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 40 00 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 02 00 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer Bluetooth: hci1: Opcode 0x0c1a failed: -4 Bluetooth: hci1: Opcode 0x0406 failed: -4 Bluetooth: hci1: Opcode 0x0406 failed: -4 Bluetooth: hci0: Opcode 0x0c1a failed: -4 Bluetooth: hci0: Opcode 0x0406 failed: -4 Bluetooth: hci0: Opcode 0x0406 failed: -4 Bluetooth: hci3: Opcode 0x0c1a failed: -4 Bluetooth: hci3: Opcode 0x0406 failed: -4 Bluetooth: hci3: Opcode 0x0406 failed: -4 Bluetooth: hci2: Opcode 0x0c1a failed: -4 Bluetooth: hci2: Opcode 0x0406 failed: -4 Bluetooth: hci2: Opcode 0x0406 failed: -4 Bluetooth: hci4: Opcode 0x0c1a failed: -4 Bluetooth: hci4: Opcode 0x0406 failed: -4 Bluetooth: hci4: Opcode 0x0406 failed: -4 Bluetooth: hci5: Opcode 0x0c1a failed: -4 Bluetooth: hci5: Opcode 0x0406 failed: -4 Bluetooth: hci5: Opcode 0x0406 failed: -4 Bluetooth: hci6: Opcode 0x0c1a failed: -4 Bluetooth: hci6: Opcode 0x0406 failed: -4 Bluetooth: hci6: Opcode 0x0406 failed: -4 Bluetooth: hci7: Opcode 0x0c1a failed: -4 Bluetooth: hci7: Opcode 0x0406 failed: -4 Bluetooth: hci7: Opcode 0x0406 failed: -4