program syz-executor.3 is using a deprecated SCSI ioctl, please convert it to SG_IO iso9660: Bad value for 'block' iso9660: Bad value for 'block' ===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260113 #1 Not tainted ------------------------------------- syz-executor.5/283 is trying to release lock (rcu_read_lock) at: [] __wait_on_freeing_inode+0x105/0x350 but there are no more locks to release! other info that might help us debug this: 4 locks held by syz-executor.5/283: #0: ffff88800f43e3f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff88801b563d10 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f58a950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xe32/0x12d0 #3: ffffffff85c16898 (inode_hash_lock){+.+.}-{3:3}, at: insert_inode_locked+0xf9/0x890 stack backtrace: CPU: 1 UID: 0 PID: 283 Comm: syz-executor.5 Not tainted 6.19.0-rc5-next-20260113 #1 PREEMPT(lazy) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xca/0x120 print_unlock_imbalance_bug+0x118/0x130 lock_release+0x1ee/0x270 __wait_on_freeing_inode+0x10a/0x350 insert_inode_locked+0x25f/0x890 __ext4_new_inode+0x223d/0x4cd0 ext4_mkdir+0x331/0xb30 vfs_mkdir+0x6d8/0xc00 do_mkdirat+0x11a/0x440 __x64_sys_mkdir+0x65/0x80 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9fd2946c27 Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 53 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:00007fff9b572528 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007fff9b5725b0 RCX: 00007f9fd2946c27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007fff9b5725b0 RBP: 00007fff9b57258c R08: 0000000000000000 R09: 0000000000000003 R10: 00007fff9b5722c7 R11: 0000000000000206 R12: 0000000000000032 R13: 00000000000230f6 R14: 0000000000000002 R15: 00007fff9b5725f0 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#1: syz-executor.5/283 Modules linked in: CPU: 1 UID: 0 PID: 283 Comm: syz-executor.5 Not tainted 6.19.0-rc5-next-20260113 #1 PREEMPT(lazy) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__rcu_read_unlock+0x25f/0x5c0 Code: f2 02 00 00 c7 43 58 01 00 00 00 bf 09 00 00 00 e8 a6 bb de ff 4d 85 f6 0f 84 73 fe ff ff e8 38 89 20 00 fb e9 68 fe ff ff 90 <0f> 0b 90 5b 5d 41 5c 41 5d 41 5e e9 61 f9 73 03 e8 0c 88 56 00 e9 RSP: 0018:ffff88806cf08cb8 EFLAGS: 00010086 RAX: 00000000ffffffff RBX: ffff88800ab05280 RCX: 000000000000000d RDX: 0000000000000000 RSI: ffffffff85e25d40 RDI: ffff88800ab0567c RBP: ffff88800ab05280 R08: ffffffff84e98ac0 R09: 0000000000000000 R10: 0000000000000000 R11: ffff88806cf08ff8 R12: ffff88800ab05280 R13: 0000000000000001 R14: ffff88806cf379c0 R15: ffff88806cf37a20 FS: 000055555f729400(0000) GS:ffff8880e5442000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff9b570ce8 CR3: 000000001ccd8000 CR4: 0000000000350ef0 Call Trace: sched_tick+0x232/0x6e0 update_process_times+0x116/0x210 tick_nohz_handler+0x4ff/0x8c0 __hrtimer_run_queues+0x654/0xbb0 hrtimer_interrupt+0x369/0x830 __sysvec_apic_timer_interrupt+0xbb/0x300 sysvec_apic_timer_interrupt+0x6b/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__sanitizer_cov_trace_cmp8+0x8/0x20 Code: 00 00 00 e9 da fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 <48> 89 f2 48 89 fe bf 06 00 00 00 e9 a8 fe ff ff 0f 1f 84 00 00 00 RSP: 0018:ffff8880182ff788 EFLAGS: 00000287 RAX: 0000000000000003 RBX: ffffffff86681f70 RCX: ffffffff84c4fbdf RDX: 0000000000000000 RSI: ffffffff81576eb8 RDI: ffffffff815d780f RBP: ffffffff81576eb8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815752d2 R11: 0000000000000000 R12: ffffffff815d780f R13: dffffc0000000000 R14: 0000000000000002 R15: 000000000000000b __report_bug+0x4cf/0x5b0 report_bug+0x7c/0x120 handle_bug+0x2e8/0x4f0 exc_invalid_op+0x35/0x80 asm_exc_invalid_op+0x1a/0x20 RIP: 0010:__rcu_read_unlock+0x25f/0x5c0 Code: f2 02 00 00 c7 43 58 01 00 00 00 bf 09 00 00 00 e8 a6 bb de ff 4d 85 f6 0f 84 73 fe ff ff e8 38 89 20 00 fb e9 68 fe ff ff 90 <0f> 0b 90 5b 5d 41 5c 41 5d 41 5e e9 61 f9 73 03 e8 0c 88 56 00 e9 RSP: 0018:ffff8880182ff9e0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff88800ab05280 RCX: ffffffff815664c7 RDX: 0000000000000000 RSI: ffffffff815664d0 RDI: ffff88800ab0567c RBP: ffff88800ab05280 R08: 0000000000000000 R09: fffffbfff0ba6ff4 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800ab05280 R13: 0000000000000001 R14: ffffffff85c0e960 R15: ffff88801b79b2c0 __wait_on_freeing_inode+0x10f/0x350 insert_inode_locked+0x25f/0x890 __ext4_new_inode+0x223d/0x4cd0 ext4_mkdir+0x331/0xb30 vfs_mkdir+0x6d8/0xc00 do_mkdirat+0x11a/0x440 __x64_sys_mkdir+0x65/0x80 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9fd2946c27 Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 53 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:00007fff9b572528 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007fff9b5725b0 RCX: 00007f9fd2946c27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007fff9b5725b0 RBP: 00007fff9b57258c R08: 0000000000000000 R09: 0000000000000003 R10: 00007fff9b5722c7 R11: 0000000000000206 R12: 0000000000000032 R13: 00000000000230f6 R14: 0000000000000002 R15: 00007fff9b5725f0 irq event stamp: 174565 hardirqs last enabled at (174565): [] irqentry_exit+0x17b/0x650 hardirqs last disabled at (174563): [] handle_softirqs+0x65e/0x7d0 softirqs last enabled at (174564): [] __irq_exit_rcu+0xc4/0x100 softirqs last disabled at (174553): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- program syz-executor.3 is using a deprecated SCSI ioctl, please convert it to SG_IO loop7: detected capacity change from 0 to 6 FAT-fs (loop7): Directory bread(block 6) failed FAT-fs (loop7): error, corrupted directory (invalid entries) FAT-fs (loop7): Filesystem has been set read-only program syz-executor.3 is using a deprecated SCSI ioctl, please convert it to SG_IO loop5: detected capacity change from 0 to 1024 EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. EXT4-fs (loop5): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop5: detected capacity change from 0 to 1024 EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. EXT4-fs (loop5): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop5: detected capacity change from 0 to 1024 EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. EXT4-fs (loop5): unmounting filesystem 00000000-0000-0000-0000-000000000000. Bluetooth: hci0: command 0x0401 tx timeout loop5: detected capacity change from 0 to 1024 UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. EXT4-fs (loop5): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop7: detected capacity change from 0 to 4 EXT4-fs (loop7): bad geometry: block count 512 exceeds size of device (1 blocks) loop7: detected capacity change from 0 to 4 EXT4-fs (loop7): bad geometry: block count 512 exceeds size of device (1 blocks) tmpfs: Unknown parameter 'huge}alw„ys' tmpfs: Unknown parameter 'huge}alw„ys' loop7: detected capacity change from 0 to 4 EXT4-fs (loop7): bad geometry: block count 512 exceeds size of device (1 blocks) tmpfs: Unknown parameter 'huge}alw„ys' tmpfs: Unknown parameter 'huge}alw„ys' loop7: detected capacity change from 0 to 4 tmpfs: Unknown parameter 'huge}alw„ys' EXT4-fs (loop7): bad geometry: block count 512 exceeds size of device (1 blocks) loop7: detected capacity change from 0 to 4 tmpfs: Unknown parameter 'huge}alw„ys' tmpfs: Unknown parameter 'huge}alw„ys' EXT4-fs (loop7): bad geometry: block count 512 exceeds size of device (1 blocks) FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) tmpfs: Unknown parameter 'huge}alw„ys' netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. 9p: Could not find request transport: unixµ8íúæ{!¬ÖZæ;vb+Š¯bTT—&Z$côÆÙÏ„š'øÚÝíXÙY9"Bn netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. 9p: Could not find request transport: unixµ8íúæ{!¬ÖZæ;vb+Š¯bTT—&Z$côÆÙÏ„š'øÚÝíXÙY9"Bn netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. audit: type=1400 audit(1768298871.350:10): avc: denied { write } for pid=4167 comm="syz-executor.5" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 random: crng reseeded on system resumption random: crng reseeded on system resumption random: crng reseeded on system resumption random: crng reseeded on system resumption random: crng reseeded on system resumption random: crng reseeded on system resumption EXT4-fs (loop2): warning: mounting unchecked fs, running e2fsck is recommended EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. random: crng reseeded on system resumption random: crng reseeded on system resumption random: crng reseeded on system resumption random: crng reseeded on system resumption program syz-executor.1 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.1 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.1 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO syz-executor.5 (4344) used greatest stack depth: 24056 bytes left program syz-executor.1 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO syz-executor.1 (4373) used greatest stack depth: 23992 bytes left program syz-executor.1 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO audit: type=1326 audit(1768298876.571:11): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4466 comm="syz-executor.4" exe="/syz-executor.4" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f6800370b19 code=0x7ffc0000 audit: type=1326 audit(1768298876.573:12): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4466 comm="syz-executor.4" exe="/syz-executor.4" sig=0 arch=c000003e syscall=160 compat=0 ip=0x7f6800370b19 code=0x7ffc0000 audit: type=1326 audit(1768298876.573:13): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4466 comm="syz-executor.4" exe="/syz-executor.4" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f6800370b19 code=0x7ffc0000 audit: type=1326 audit(1768298876.581:14): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4466 comm="syz-executor.4" exe="/syz-executor.4" sig=0 arch=c000003e syscall=317 compat=0 ip=0x7f6800370b19 code=0x7ffc0000 audit: type=1326 audit(1768298876.581:15): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4466 comm="syz-executor.4" exe="/syz-executor.4" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f6800370b19 code=0x7ffc0000 audit: type=1400 audit(1768298876.759:16): avc: denied { read } for pid=4490 comm="syz-executor.2" 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(1768298878.584:17): avc: denied { watch_reads } for pid=4571 comm="syz-executor.6" path="/syzkaller-testdir580741750/syzkaller.b9QzKM/41/file0" dev="tmpfs" ino=1 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:tmpfs_t:s0 tclass=dir permissive=1 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 00 00 add %al,(%rax) 2: e9 da fe ff ff jmpq 0xfffffee1 7: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) e: 00 00 00 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: f3 0f 1e fa endbr64 25: 48 8b 0c 24 mov (%rsp),%rcx * 29: 48 89 f2 mov %rsi,%rdx <-- trapping instruction 2c: 48 89 fe mov %rdi,%rsi 2f: bf 06 00 00 00 mov $0x6,%edi 34: e9 a8 fe ff ff jmpq 0xfffffee1 39: 0f .byte 0xf 3a: 1f (bad) 3b: 84 00 test %al,(%rax)