Warning: Permanently added '10.128.1.151' (ED25519) to the list of known hosts. 2026/02/19 12:44:50 parsed 1 programs [ 44.414613][ T24] kauditd_printk_skb: 30 callbacks suppressed [ 44.414624][ T24] audit: type=1400 audit(1771505091.640:104): avc: denied { unlink } for pid=417 comm="syz-executor" name="swap-file" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 44.608275][ T417] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 45.359944][ T24] audit: type=1401 audit(1771505092.590:105): op=setxattr invalid_context="u:object_r:app_data_file:s0:c512,c768" [ 45.482776][ T451] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.490206][ T451] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.498016][ T451] device bridge_slave_0 entered promiscuous mode [ 45.505224][ T451] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.512553][ T451] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.520400][ T451] device bridge_slave_1 entered promiscuous mode [ 45.551767][ T451] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.559054][ T451] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.566286][ T451] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.573432][ T451] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.588805][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.596118][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.603624][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.611124][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.619841][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.628105][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.635319][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.643658][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.651885][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.659324][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.670761][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.679620][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.692188][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 45.702829][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 45.710929][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 45.718451][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 45.726501][ T451] device veth0_vlan entered promiscuous mode [ 45.739123][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 45.748015][ T451] device veth1_macvtap entered promiscuous mode [ 45.756746][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 45.767520][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 45.878881][ T24] audit: type=1400 audit(1771505093.110:106): avc: denied { create } for pid=468 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bluetooth_socket permissive=1 2026/02/19 12:44:53 executed programs: 0 [ 46.046525][ T24] audit: type=1400 audit(1771505093.270:107): avc: denied { write } for pid=408 comm="syz-execprog" path="pipe:[15444]" dev="pipefs" ino=15444 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 46.091480][ T477] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.098639][ T477] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.105900][ T477] device bridge_slave_0 entered promiscuous mode [ 46.113337][ T477] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.120486][ T477] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.128281][ T477] device bridge_slave_1 entered promiscuous mode [ 46.161141][ T477] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.168207][ T477] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.175426][ T477] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.182573][ T477] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.198364][ T322] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.206140][ T322] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.213669][ T322] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.223868][ T322] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.232199][ T322] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.239844][ T322] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.256268][ T322] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.264612][ T322] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.271668][ T322] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.279597][ T322] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.287657][ T322] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.299397][ T322] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 46.311849][ T322] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 46.320353][ T322] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 46.327819][ T322] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 46.336067][ T477] device veth0_vlan entered promiscuous mode [ 46.347566][ T322] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 46.356439][ T477] device veth1_macvtap entered promiscuous mode [ 46.367372][ T322] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 46.378017][ T322] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 46.479132][ T489] EXT4-fs (loop2): 1 orphan inode deleted [ 46.484936][ T489] EXT4-fs (loop2): mounted filesystem without journal. Opts: errors=remount-ro,nodiscard,noquota,init_itable,stripe=0x0000000000000079,resgid=0x0000000000000000,sysvgroups,bsddf,lazytime, [ 46.504094][ T24] audit: type=1400 audit(1771505093.730:108): avc: denied { mount } for pid=488 comm="syz.2.16" name="/" dev="loop2" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 46.504106][ T489] ext4 filesystem being mounted at /0/file1 supports timestamps until 2038-01-19 (0x7fffffff) [ 46.536632][ T24] audit: type=1400 audit(1771505093.730:109): avc: denied { write } for pid=488 comm="syz.2.16" name="/" dev="loop2" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 46.558367][ T24] audit: type=1400 audit(1771505093.730:110): avc: denied { add_name } for pid=488 comm="syz.2.16" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 46.561980][ T493] EXT4-fs error (device loop2): ext4_ext_remove_space:2841: inode #16: comm syz.2.16: path[1].p_hdr == NULL [ 46.579293][ T24] audit: type=1400 audit(1771505093.730:111): avc: denied { create } for pid=488 comm="syz.2.16" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 46.610564][ T24] audit: type=1400 audit(1771505093.730:112): avc: denied { write open } for pid=488 comm="syz.2.16" path="/0/file1/bus" dev="loop2" ino=16 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 46.611674][ T493] EXT4-fs (loop2): Remounting filesystem read-only [ 46.633505][ T24] audit: type=1400 audit(1771505093.730:113): avc: denied { read } for pid=488 comm="syz.2.16" name="bus" dev="loop2" ino=16 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 46.661978][ T493] EXT4-fs error (device loop2) in ext4_reserve_inode_write:5952: Corrupt filesystem [ 46.672318][ T493] EXT4-fs error (device loop2): ext4_punch_hole:4236: inode #16: comm syz.2.16: mark_inode_dirty error [ 47.078056][ T49] device bridge_slave_1 left promiscuous mode [ 47.084261][ T49] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.091964][ T49] device bridge_slave_0 left promiscuous mode [ 47.098393][ T49] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.106557][ T49] device veth1_macvtap left promiscuous mode [ 47.113068][ T49] device veth0_vlan left promiscuous mode [ 47.238038][ T477] EXT4-fs error (device loop2): ext4_map_blocks:630: inode #2: block 3: comm syz-executor: lblock 0 mapped to illegal pblock 3 (length 1) [ 47.474551][ T495] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.481887][ T495] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.489783][ T495] device bridge_slave_0 entered promiscuous mode [ 47.496769][ T495] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.504360][ T495] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.512162][ T495] device bridge_slave_1 entered promiscuous mode [ 47.566755][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 47.574690][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 47.583657][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 47.592373][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 47.600807][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.608121][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.616749][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 47.626063][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 47.634369][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.642741][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.649829][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.660582][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 47.671894][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 47.684404][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 47.695212][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 47.703623][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 47.711636][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 47.721756][ T495] device veth0_vlan entered promiscuous mode [ 47.731090][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 47.740075][ T495] device veth1_macvtap entered promiscuous mode [ 47.749333][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 47.760645][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 47.889733][ T500] EXT4-fs (loop3): 1 orphan inode deleted [ 47.895718][ T500] EXT4-fs (loop3): mounted filesystem without journal. Opts: errors=remount-ro,nodiscard,noquota,init_itable,stripe=0x0000000000000079,resgid=0x0000000000000000,sysvgroups,bsddf,lazytime, [ 47.914677][ T500] ext4 filesystem being mounted at /0/file1 supports timestamps until 2038-01-19 (0x7fffffff) [ 47.984170][ T504] ================================================================== [ 47.992348][ T504] BUG: KASAN: use-after-free in ext4_find_extent+0xbeb/0xe20 [ 47.999705][ T504] Read of size 4 at addr ffff888126caf58c by task syz.3.19/504 [ 48.007228][ T504] [ 48.009545][ T504] CPU: 1 PID: 504 Comm: syz.3.19 Not tainted syzkaller #0 [ 48.016638][ T504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 48.026775][ T504] Call Trace: [ 48.030489][ T504] __dump_stack+0x21/0x24 [ 48.035004][ T504] dump_stack_lvl+0x1a7/0x208 [ 48.039682][ T504] ? show_regs_print_info+0x18/0x18 [ 48.044863][ T504] ? thaw_kernel_threads+0x220/0x220 [ 48.050349][ T504] print_address_description+0x7f/0x2c0 [ 48.055988][ T504] ? ext4_find_extent+0xbeb/0xe20 [ 48.061003][ T504] kasan_report+0xe2/0x130 [ 48.065402][ T504] ? __read_extent_tree_block+0x1e8/0x790 [ 48.071105][ T504] ? ext4_find_extent+0xbeb/0xe20 [ 48.076386][ T504] __asan_report_load4_noabort+0x14/0x20 [ 48.082019][ T504] ext4_find_extent+0xbeb/0xe20 [ 48.086858][ T504] ext4_ext_remove_space+0x2f0/0x4570 [ 48.092251][ T504] ? sched_clock_cpu+0x1b/0x3d0 [ 48.097187][ T504] ? sched_clock+0x3a/0x40 [ 48.101587][ T504] ? sched_clock_cpu+0x1b/0x3d0 [ 48.106440][ T504] ? debug_smp_processor_id+0x17/0x20 [ 48.111812][ T504] ? handle_fasteoi_nmi+0x360/0x360 [ 48.116994][ T504] ? __irq_exit_rcu+0x40/0x150 [ 48.121876][ T504] ? handle_fasteoi_nmi+0x360/0x360 [ 48.127196][ T504] ? irq_exit_rcu+0x9/0x10 [ 48.131932][ T504] ? common_interrupt+0x10c/0x180 [ 48.137033][ T504] ? asm_common_interrupt+0x1e/0x40 [ 48.142354][ T504] ? entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 48.148507][ T504] ? ext4_ext_index_trans_blocks+0x100/0x100 [ 48.154564][ T504] ? ext4_es_remove_extent+0x1d9/0x330 [ 48.160193][ T504] ext4_punch_hole+0x6f8/0xad0 [ 48.165111][ T504] ext4_fallocate+0x271/0x1a70 [ 48.170078][ T504] ? selinux_file_permission+0x2a5/0x510 [ 48.175904][ T504] ? preempt_count_add+0x90/0x1b0 [ 48.180921][ T504] vfs_fallocate+0x4b4/0x590 [ 48.185592][ T504] __x64_sys_fallocate+0xc0/0x110 [ 48.190601][ T504] do_syscall_64+0x31/0x40 [ 48.195074][ T504] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 48.200955][ T504] RIP: 0033:0x7f7a7d96e479 [ 48.205534][ T504] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 48.225418][ T504] RSP: 002b:00007f7a7d3b5028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 48.233938][ T504] RAX: ffffffffffffffda RBX: 00007f7a7db9d080 RCX: 00007f7a7d96e479 [ 48.242005][ T504] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000004 [ 48.250327][ T504] RBP: 00007f7a7d9ff1bc R08: 0000000000000000 R09: 0000000000000000 [ 48.258388][ T504] R10: 0000000000001a00 R11: 0000000000000246 R12: 0000000000000000 [ 48.266465][ T504] R13: 0000000000000000 R14: 00007f7a7db9d080 R15: 00007ffe007afe98 [ 48.274440][ T504] [ 48.276767][ T504] The buggy address belongs to the page: [ 48.282396][ T504] page:ffffea00049b2bc0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x126caf [ 48.292631][ T504] flags: 0x4000000000000000() [ 48.297297][ T504] raw: 4000000000000000 dead000000000100 dead000000000122 0000000000000000 [ 48.305916][ T504] raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 [ 48.314502][ T504] page dumped because: kasan: bad access detected [ 48.321021][ T504] page_owner tracks the page as freed [ 48.326401][ T504] page last allocated via order 0, migratetype Movable, gfp_mask 0x8100dca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO|0x8000000), pid 278, ts 23446798131, free_ts 25480266204 [ 48.342698][ T504] prep_new_page+0x179/0x180 [ 48.347451][ T504] get_page_from_freelist+0x223b/0x23d0 [ 48.352993][ T504] __alloc_pages_nodemask+0x290/0x620 [ 48.358371][ T504] handle_pte_fault+0x1719/0x3750 [ 48.363391][ T504] __handle_speculative_fault+0xe77/0x1390 [ 48.369367][ T504] do_user_addr_fault+0x7f3/0xc90 [ 48.374473][ T504] exc_page_fault+0x5a/0xc0 [ 48.378964][ T504] asm_exc_page_fault+0x1e/0x30 [ 48.383810][ T504] page last free stack trace: [ 48.388884][ T504] free_unref_page_prepare+0x2b7/0x2d0 [ 48.394339][ T504] free_unref_page_list+0x129/0x9c0 [ 48.399625][ T504] release_pages+0xe52/0xea0 [ 48.404199][ T504] free_pages_and_swap_cache+0x86/0xa0 [ 48.409731][ T504] tlb_flush_mmu+0xdf/0x190 [ 48.414240][ T504] unmap_page_range+0x1d66/0x2130 [ 48.419543][ T504] unmap_vmas+0x25f/0x360 [ 48.423871][ T504] exit_mmap+0x309/0x590 [ 48.428133][ T504] __mmput+0x93/0x2f0 [ 48.432192][ T504] mmput+0x4e/0x150 [ 48.435985][ T504] do_exit+0x9ec/0x2500 [ 48.440123][ T504] do_group_exit+0x141/0x310 [ 48.444802][ T504] get_signal+0xf7d/0x12e0 [ 48.449214][ T504] arch_do_signal_or_restart+0xe2/0x11d0 [ 48.454859][ T504] exit_to_user_mode_loop+0xa2/0xe0 [ 48.460059][ T504] exit_to_user_mode_prepare+0x76/0xa0 [ 48.465514][ T504] [ 48.467820][ T504] Memory state around the buggy address: [ 48.473455][ T504] ffff888126caf480: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 48.481547][ T504] ffff888126caf500: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 48.489687][ T504] >ffff888126caf580: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 48.497736][ T504] ^ [ 48.502048][ T504] ffff888126caf600: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 48.510098][ T504] ffff888126caf680: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 48.518333][ T504] ================================================================== [ 48.526399][ T504] Disabling lock debugging due to kernel taint [ 48.535693][ T504] ------------[ cut here ]------------ [ 48.541220][ T504] kernel BUG at fs/ext4/extents.c:3181! [ 48.546808][ T504] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 48.552993][ T504] CPU: 1 PID: 504 Comm: syz.3.19 Tainted: G B syzkaller #0 [ 48.561509][ T504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 48.571656][ T504] RIP: 0010:ext4_split_extent_at+0xe65/0xe90 [ 48.577627][ T504] Code: 71 cf d2 ff e9 f1 fb ff ff 89 d9 80 e1 07 fe c1 38 c1 0f 8c fe fb ff ff 48 89 df e8 35 cf d2 ff e9 f1 fb ff ff e8 5b 4e 98 ff <0f> 0b e8 54 4e 98 ff 0f 0b e8 4d 4e 98 ff 0f 0b e8 46 4e 98 ff 0f [ 48.597572][ T504] RSP: 0018:ffffc900014b7900 EFLAGS: 00010293 [ 48.603753][ T504] RAX: ffffffff81cc67f5 RBX: 1ffff11024d8c7ff RCX: ffff888119773b40 [ 48.611716][ T504] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 48.619696][ T504] RBP: ffffc900014b7a70 R08: 0000000000000000 R09: 0000000050000028 [ 48.627768][ T504] R10: dffffc0000000000 R11: fffffbfff0dcf448 R12: 0000000000000000 [ 48.635747][ T504] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 48.643840][ T504] FS: 00007f7a7d3b56c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 48.652837][ T504] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.659489][ T504] CR2: 0000400000072000 CR3: 00000001197b3000 CR4: 00000000003506a0 [ 48.667458][ T504] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.675612][ T504] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.683659][ T504] Call Trace: [ 48.686943][ T504] ? __kasan_check_write+0x14/0x20 [ 48.692042][ T504] ? __asan_report_load4_noabort+0x14/0x20 [ 48.697856][ T504] ? ext4_ext_try_to_merge_right+0x820/0x820 [ 48.703833][ T504] ext4_ext_remove_space+0x631/0x4570 [ 48.709188][ T504] ? sched_clock_cpu+0x1b/0x3d0 [ 48.714039][ T504] ? sched_clock+0x3a/0x40 [ 48.718634][ T504] ? sched_clock_cpu+0x1b/0x3d0 [ 48.723498][ T504] ? debug_smp_processor_id+0x17/0x20 [ 48.728955][ T504] ? handle_fasteoi_nmi+0x360/0x360 [ 48.734162][ T504] ? __irq_exit_rcu+0x40/0x150 [ 48.739006][ T504] ? handle_fasteoi_nmi+0x360/0x360 [ 48.744212][ T504] ? irq_exit_rcu+0x9/0x10 [ 48.748713][ T504] ? common_interrupt+0x10c/0x180 [ 48.753815][ T504] ? asm_common_interrupt+0x1e/0x40 [ 48.759013][ T504] ? entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 48.765173][ T504] ? ext4_ext_index_trans_blocks+0x100/0x100 [ 48.771152][ T504] ? ext4_es_remove_extent+0x1d9/0x330 [ 48.776594][ T504] ext4_punch_hole+0x6f8/0xad0 [ 48.781342][ T504] ext4_fallocate+0x271/0x1a70 [ 48.786089][ T504] ? selinux_file_permission+0x2a5/0x510 [ 48.791707][ T504] ? preempt_count_add+0x90/0x1b0 [ 48.796728][ T504] vfs_fallocate+0x4b4/0x590 [ 48.801310][ T504] __x64_sys_fallocate+0xc0/0x110 [ 48.806432][ T504] do_syscall_64+0x31/0x40 [ 48.810848][ T504] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 48.816745][ T504] RIP: 0033:0x7f7a7d96e479 [ 48.821163][ T504] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 48.840971][ T504] RSP: 002b:00007f7a7d3b5028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 48.849643][ T504] RAX: ffffffffffffffda RBX: 00007f7a7db9d080 RCX: 00007f7a7d96e479 [ 48.857622][ T504] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000004 [ 48.865711][ T504] RBP: 00007f7a7d9ff1bc R08: 0000000000000000 R09: 0000000000000000 [ 48.873927][ T504] R10: 0000000000001a00 R11: 0000000000000246 R12: 0000000000000000 [ 48.881975][ T504] R13: 0000000000000000 R14: 00007f7a7db9d080 R15: 00007ffe007afe98 [ 48.890030][ T504] Modules linked in: [ 48.895665][ T504] ---[ end trace e3e09dff56fc0834 ]--- [ 48.901254][ T504] RIP: 0010:ext4_split_extent_at+0xe65/0xe90 [ 48.907534][ T504] Code: 71 cf d2 ff e9 f1 fb ff ff 89 d9 80 e1 07 fe c1 38 c1 0f 8c fe fb ff ff 48 89 df e8 35 cf d2 ff e9 f1 fb ff ff e8 5b 4e 98 ff <0f> 0b e8 54 4e 98 ff 0f 0b e8 4d 4e 98 ff 0f 0b e8 46 4e 98 ff 0f [ 48.927779][ T504] RSP: 0018:ffffc900014b7900 EFLAGS: 00010293 [ 48.933879][ T504] RAX: ffffffff81cc67f5 RBX: 1ffff11024d8c7ff RCX: ffff888119773b40 [ 48.942150][ T504] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 48.950310][ T504] RBP: ffffc900014b7a70 R08: 0000000000000000 R09: 0000000050000028 [ 48.958365][ T504] R10: dffffc0000000000 R11: fffffbfff0dcf448 R12: 0000000000000000 [ 48.966355][ T504] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 48.974464][ T504] FS: 00007f7a7d3b56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 48.983726][ T504] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.990402][ T504] CR2: 00007fd7608a1000 CR3: 00000001197b3000 CR4: 00000000003506b0 [ 48.998408][ T504] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.006380][ T504] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.014491][ T504] Kernel panic - not syncing: Fatal exception [ 49.020867][ T504] Kernel Offset: disabled [ 49.025186][ T504] Rebooting in 86400 seconds..