Warning: Permanently added '10.128.0.40' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program [ 21.950730][ T28] audit: type=1400 audit(1748403733.519:64): avc: denied { execmem } for pid=283 comm="syz-executor414" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 22.000650][ T294] loop4: detected capacity change from 0 to 2048 [ 22.003717][ T300] loop0: detected capacity change from 0 to 2048 [ 22.009269][ T299] loop2: detected capacity change from 0 to 2048 [ 22.019088][ T301] loop3: detected capacity change from 0 to 2048 [ 22.020652][ T28] audit: type=1400 audit(1748403733.519:65): avc: denied { read write } for pid=289 comm="syz-executor414" name="loop4" dev="devtmpfs" ino=122 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 22.053742][ T302] loop1: detected capacity change from 0 to 2048 [ 22.081613][ T28] audit: type=1400 audit(1748403733.519:66): avc: denied { open } for pid=289 comm="syz-executor414" path="/dev/loop4" dev="devtmpfs" ino=122 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 22.106490][ T28] audit: type=1400 audit(1748403733.519:67): avc: denied { ioctl } for pid=289 comm="syz-executor414" path="/dev/loop4" dev="devtmpfs" ino=122 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 22.106896][ T302] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none. [ 22.133045][ T28] audit: type=1400 audit(1748403733.589:68): avc: denied { mounton } for pid=296 comm="syz-executor414" path="/root/syzkaller.2CwJ1c/0/file1" dev="sda1" ino=2038 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 22.141095][ T294] EXT4-fs (loop4): mounted filesystem without journal. Quota mode: none. [ 22.165563][ T299] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: none. [ 22.174396][ T28] audit: type=1400 audit(1748403733.749:69): avc: denied { mount } for pid=292 comm="syz-executor414" name="/" dev="loop4" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 22.190901][ T300] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none. [ 22.204236][ T28] audit: type=1400 audit(1748403733.779:70): avc: denied { read } for pid=292 comm="syz-executor414" name="kvm" dev="devtmpfs" ino=83 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:kvm_device_t tclass=chr_file permissive=1 [ 22.242067][ T28] audit: type=1400 audit(1748403733.779:71): avc: denied { open } for pid=292 comm="syz-executor414" path="/dev/kvm" dev="devtmpfs" ino=83 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:kvm_device_t tclass=chr_file permissive=1 [ 22.265856][ T28] audit: type=1400 audit(1748403733.789:72): avc: denied { write } for pid=293 comm="syz-executor414" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 22.267324][ T294] EXT4-fs error (device loop4): ext4_mb_generate_buddy:1102: group 0, [ 22.288251][ T28] audit: type=1400 audit(1748403733.789:73): avc: denied { add_name } for pid=293 comm="syz-executor414" name="memory.events" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 22.318196][ T294] block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 22.329259][ T301] EXT4-fs (loop3): mounted filesystem without journal. Quota mode: none. [ 22.338931][ T286] EXT4-fs (loop1): unmounting filesystem. [ 22.341147][ T285] EXT4-fs (loop0): unmounting filesystem. executing program [ 22.345457][ T287] EXT4-fs (loop2): unmounting filesystem. [ 22.367680][ T8] ------------[ cut here ]------------ [ 22.373288][ T8] kernel BUG at fs/ext4/inode.c:2761! [ 22.378809][ T301] EXT4-fs error (device loop3): ext4_mb_generate_buddy:1102: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 22.389036][ T8] invalid opcode: 0000 [#1] PREEMPT SMP KASAN executing program executing program [ 22.399598][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 6.1.138-syzkaller-00046-gdb710ea87c32 #0 [ 22.406704][ T323] loop1: detected capacity change from 0 to 2048 [ 22.409328][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 22.409342][ T8] Workqueue: writeback wb_workfn (flush-7:4) [ 22.431730][ T8] RIP: 0010:ext4_writepages+0x2ff8/0x3020 [ 22.435191][ T326] loop0: detected capacity change from 0 to 2048 [ 22.437479][ T8] Code: c1 86 ff 84 db 75 31 e8 26 be 86 ff 49 bc 00 00 00 00 00 fc ff df 4c 8b 7c 24 18 4c 8b 6c 24 38 e9 a2 f7 ff ff e8 08 be 86 ff <0f> 0b e8 01 be 86 ff e8 98 47 17 ff eb 93 e8 f5 bd 86 ff e8 8c 47 [ 22.437495][ T8] RSP: 0018:ffffc90000087120 EFLAGS: 00010293 [ 22.437513][ T8] RAX: ffffffff81e93308 RBX: 000000c410000000 RCX: ffff888100396540 [ 22.447655][ T327] loop2: detected capacity change from 0 to 2048 [ 22.463432][ T8] RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 [ 22.463449][ T8] RBP: ffffc90000087490 R08: dffffc0000000000 R09: ffffed10200b2f0e [ 22.463461][ T8] R10: ffffed10200b2f0e R11: 1ffff110200b2f0d R12: dffffc0000000000 [ 22.463473][ T8] R13: ffff888100597980 R14: 0000008000000000 R15: ffff888100597868 [ 22.463485][ T8] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 22.524792][ T8] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.531381][ T8] CR2: 00007f51d8d94000 CR3: 0000000124d5a000 CR4: 00000000003506b0 [ 22.539355][ T8] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.547320][ T8] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.555298][ T8] Call Trace: [ 22.558570][ T8] [ 22.561502][ T8] ? __cfi___writepage+0x10/0x10 [ 22.566445][ T8] ? __cfi_ext4_writepages+0x10/0x10 [ 22.571731][ T8] ? __kasan_check_write+0x14/0x20 [ 22.576848][ T8] ? blk_finish_plug+0x4c/0x80 [ 22.581700][ T8] ? generic_writepages+0x102/0x160 [ 22.586894][ T8] ? __cfi_generic_writepages+0x10/0x10 [ 22.592437][ T8] ? __kasan_check_write+0x14/0x20 [ 22.597562][ T8] ? _raw_spin_lock+0x8e/0xe0 [ 22.602261][ T8] ? __kasan_check_write+0x14/0x20 [ 22.607385][ T8] ? __cfi_ext4_writepages+0x10/0x10 [ 22.612679][ T8] do_writepages+0x3a9/0x5e0 [ 22.617273][ T8] ? __update_load_avg_cfs_rq+0xaf/0x2f0 [ 22.622906][ T8] ? __cfi_do_writepages+0x10/0x10 [ 22.628011][ T8] ? __kasan_check_write+0x14/0x20 [ 22.633119][ T8] __writeback_single_inode+0xc6/0xad0 [ 22.638573][ T8] writeback_sb_inodes+0x9b8/0x1550 [ 22.643771][ T8] ? check_preempt_wakeup+0x7fd/0xbc0 [ 22.649145][ T8] ? queue_io+0x4c0/0x4c0 [ 22.653468][ T8] ? __kasan_check_read+0x11/0x20 [ 22.658496][ T8] ? queue_io+0x382/0x4c0 [ 22.662820][ T8] wb_writeback+0x3f1/0x980 [ 22.667336][ T8] ? inode_cgwb_move_to_attached+0x3e0/0x3e0 [ 22.673335][ T8] ? set_worker_desc+0x155/0x1c0 [ 22.678294][ T8] ? update_load_avg+0x4c2/0x13f0 [ 22.683346][ T8] ? __kasan_check_write+0x14/0x20 [ 22.688480][ T8] ? sched_clock_cpu+0x6e/0x250 [ 22.693338][ T8] wb_workfn+0x350/0xda0 [ 22.697587][ T8] ? __cfi_wb_workfn+0x10/0x10 [ 22.702350][ T8] ? kthread_data+0x50/0xc0 [ 22.706855][ T8] ? _raw_spin_unlock+0x4c/0x70 [ 22.711709][ T8] ? finish_task_switch+0x16b/0x7b0 [ 22.716902][ T8] ? __switch_to_asm+0x3a/0x60 [ 22.721664][ T8] ? __schedule+0xb8f/0x14e0 [ 22.726252][ T8] ? __cfi___pv_queued_spin_lock_slowpath+0x10/0x10 [ 22.732842][ T8] process_one_work+0x71f/0xc40 [ 22.737691][ T8] worker_thread+0xa29/0x11f0 [ 22.742365][ T8] kthread+0x281/0x320 [ 22.746427][ T8] ? __cfi_worker_thread+0x10/0x10 [ 22.751534][ T8] ? __cfi_kthread+0x10/0x10 [ 22.756124][ T8] ret_from_fork+0x1f/0x30 [ 22.760534][ T8] [ 22.763552][ T8] Modules linked in: [ 22.771039][ T8] ---[ end trace 0000000000000000 ]--- [ 22.777767][ T8] RIP: 0010:ext4_writepages+0x2ff8/0x3020 [ 22.784473][ T8] Code: c1 86 ff 84 db 75 31 e8 26 be 86 ff 49 bc 00 00 00 00 00 fc ff df 4c 8b 7c 24 18 4c 8b 6c 24 38 e9 a2 f7 ff ff e8 08 be 86 ff <0f> 0b e8 01 be 86 ff e8 98 47 17 ff eb 93 e8 f5 bd 86 ff e8 8c 47 executing program [ 22.784602][ T288] EXT4-fs (loop3): unmounting filesystem. [ 22.816204][ T8] RSP: 0018:ffffc90000087120 EFLAGS: 00010293 [ 22.825814][ T8] RAX: ffffffff81e93308 RBX: 000000c410000000 RCX: ffff888100396540 [ 22.834459][ T327] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: none. [ 22.845399][ T326] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none. [ 22.845894][ T334] loop3: detected capacity change from 0 to 2048 [ 22.855280][ T327] EXT4-fs error (device loop2): ext4_mb_generate_buddy:1102: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 22.862006][ T8] RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 [ 22.883466][ T8] RBP: ffffc90000087490 R08: dffffc0000000000 R09: ffffed10200b2f0e [ 22.891640][ T8] R10: ffffed10200b2f0e R11: 1ffff110200b2f0d R12: dffffc0000000000 [ 22.896205][ T323] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none. [ 22.899733][ T8] R13: ffff888100597980 R14: 0000008000000000 R15: ffff888100597868 [ 22.916466][ T8] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 22.925489][ T8] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.925766][ T326] EXT4-fs error (device loop0): ext4_mb_generate_buddy:1102: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 22.932321][ T8] CR2: 00007f51e10b6000 CR3: 000000011028b000 CR4: 00000000003506b0 [ 22.955323][ T8] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.963566][ T8] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.968629][ T323] EXT4-fs error (device loop1): ext4_mb_generate_buddy:1102: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 22.972449][ T8] Kernel panic - not syncing: Fatal exception [ 22.986726][ T8] Kernel Offset: disabled [ 22.997518][ T8] Rebooting in 86400 seconds..