tmpfs: Unsupported parameter 'huge' tmpfs: Unsupported parameter 'huge' tmpfs: Unsupported parameter 'huge' tmpfs: Unsupported parameter 'huge' ===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260113 #1 Not tainted ------------------------------------- syz-executor.1/4058 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.1/4058: #0: ffff88800fa6a3f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff888020e1b388 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800fa6e950 (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: 4058 Comm: syz-executor.1 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_symlink+0x406/0xb40 vfs_symlink+0x44b/0x840 do_symlinkat+0x153/0x440 __x64_sys_symlink+0x79/0xa0 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdf751b8427 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 58 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:00007ffc746b5528 EFLAGS: 00000206 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdf751b8427 RDX: 00007ffc746b5603 RSI: 00007fdf7521302f RDI: 00007ffc746b55f0 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffc746b53c0 R10: 00007ffc746b5277 R11: 0000000000000206 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffc746b55f0 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#1: syz-executor.1/4058 Modules linked in: CPU: 1 UID: 0 PID: 4058 Comm: syz-executor.1 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:ffff888058f479a0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff8880560a8000 RCX: ffffffff815664c7 RDX: 0000000000000000 RSI: ffffffff815664d0 RDI: ffff8880560a83fc RBP: ffff8880560a8000 R08: 0000000000000000 R09: fffffbfff0ba6ff4 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880560a8000 R13: 0000000000000001 R14: ffffffff85c0e3c0 R15: ffff888020e19fb0 FS: 0000555586bce400(0000) GS:ffff8880e5442000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdf75238541 CR3: 00000000553aa000 CR4: 0000000000350ef0 Call Trace: __wait_on_freeing_inode+0x10f/0x350 insert_inode_locked+0x25f/0x890 __ext4_new_inode+0x223d/0x4cd0 ext4_symlink+0x406/0xb40 vfs_symlink+0x44b/0x840 do_symlinkat+0x153/0x440 __x64_sys_symlink+0x79/0xa0 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdf751b8427 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 58 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:00007ffc746b5528 EFLAGS: 00000206 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdf751b8427 RDX: 00007ffc746b5603 RSI: 00007fdf7521302f RDI: 00007ffc746b55f0 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffc746b53c0 R10: 00007ffc746b5277 R11: 0000000000000206 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffc746b55f0 irq event stamp: 801 hardirqs last enabled at (801): [] irqentry_exit+0x17b/0x650 hardirqs last disabled at (800): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (794): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (792): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- netlink: 340 bytes leftover after parsing attributes in process `syz-executor.4'. tmpfs: Unsupported parameter 'huge' netlink: 340 bytes leftover after parsing attributes in process `syz-executor.4'. tmpfs: Unsupported parameter 'huge' tmpfs: Unsupported parameter 'huge' tmpfs: Unsupported parameter 'huge' mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 340 bytes leftover after parsing attributes in process `syz-executor.4'. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium tmpfs: Unsupported parameter 'huge' mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium audit: type=1400 audit(1768295900.043:10): avc: denied { watch_reads } for pid=4164 comm="syz-executor.3" path="/syzkaller-testdir988555111/syzkaller.viERXl/17/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 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 'syz-executor.5': attribute type 30 has an invalid length. netlink: 'syz-executor.5': attribute type 30 has an invalid length. netlink: 'syz-executor.5': attribute type 30 has an invalid length. netlink: 'syz-executor.5': attribute type 30 has an invalid length. kernel read not supported for file /vga_arbiter (pid: 3967 comm: kworker/1:3) netlink: 'syz-executor.5': attribute type 30 has an invalid length. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. kernel read not supported for file /vga_arbiter (pid: 3967 comm: kworker/1:3) netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. kernel read not supported for file /vga_arbiter (pid: 3967 comm: kworker/1:3) kernel read not supported for file /vga_arbiter (pid: 59 comm: kworker/0:2) netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. kernel read not supported for file /vga_arbiter (pid: 3967 comm: kworker/1:3) netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. kernel read not supported for file /vga_arbiter (pid: 3967 comm: kworker/1:3) loop0: detected capacity change from 0 to 512 kernel read not supported for file /vga_arbiter (pid: 59 comm: kworker/0:2) EXT4-fs (loop0): failed to parse options in superblock: b EXT4-fs warning (device loop0): ext4_multi_mount_protect:288: Invalid MMP block in superblock loop0: detected capacity change from 0 to 512 EXT4-fs (loop0): failed to parse options in superblock: b EXT4-fs warning (device loop0): ext4_multi_mount_protect:288: Invalid MMP block in superblock kernel read not supported for file /vga_arbiter (pid: 59 comm: kworker/0:2) loop0: detected capacity change from 0 to 512 EXT4-fs (loop0): failed to parse options in superblock: b EXT4-fs warning (device loop0): ext4_multi_mount_protect:288: Invalid MMP block in superblock loop0: detected capacity change from 0 to 512 EXT4-fs (loop0): failed to parse options in superblock: b EXT4-fs warning (device loop0): ext4_multi_mount_protect:288: Invalid MMP block in superblock loop0: detected capacity change from 0 to 512 EXT4-fs (loop0): failed to parse options in superblock: b EXT4-fs warning (device loop0): ext4_multi_mount_protect:288: Invalid MMP block in superblock __nla_validate_parse: 2 callbacks suppressed netlink: 4 bytes leftover after parsing attributes in process `syz-executor.6'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.6'. UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list netlink: 4 bytes leftover after parsing attributes in process `syz-executor.6'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.6'. process 'syz-executor.3' launched './file1' with NULL argv: empty string added loop4: detected capacity change from 0 to 2048 EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (46507!=0) EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 ro without journal. Quota mode: writeback. EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop4: detected capacity change from 0 to 2048 EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (46507!=0) EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 ro without journal. Quota mode: writeback. EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop4: detected capacity change from 0 to 2048 EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (46507!=0) EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 ro without journal. Quota mode: writeback. EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000. syz-executor.1 (4618) used greatest stack depth: 24192 bytes left loop4: detected capacity change from 0 to 2048 EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (46507!=0) EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 ro without journal. Quota mode: writeback. EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop6: detected capacity change from 0 to 512 audit: type=1400 audit(1768295908.283:11): avc: denied { write } for pid=4662 comm="syz-executor.6" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 EXT4-fs error (device loop6): __ext4_fill_super:5553: inode #2: comm syz-executor.6: iget: special inode unallocated EXT4-fs (loop6): get root inode failed EXT4-fs (loop6): mount failed