audit: type=1400 audit(1756543140.699:10): avc: denied { write } for pid=3987 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 msdos: Unknown parameter 'yókʳԚl{ôI­erìXs' msdos: Unknown parameter 'yókʳԚl{ôI­erìXs' unregister_netdevice: waiting for sit0 to become free. Usage count = 0 loop5: detected capacity change from 0 to 140 EXT4-fs (loop5): warning: mounting unchecked fs, running e2fsck is recommended kmemleak: Found object by alias at 0x607f1a63936c CPU: 0 UID: 0 PID: 4020 Comm: syz-executor.6 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 get_signal+0x2315/0x2340 arch_do_signal_or_restart+0x80/0x790 exit_to_user_mode_loop+0x8b/0x110 do_syscall_64+0x2f7/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4dc5540a04 Code: Unable to access opcode bytes at 0x7f4dc55409da. RSP: 002b:00007f4dc2b030b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: 0000000000000004 RBX: 00007f4dc56a0f60 RCX: 00007f4dc5540a04 RDX: 0000000000000000 RSI: 00007f4dc55e6f82 RDI: 00000000ffffff9c RBP: 00007f4dc55e6f82 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007fff93dda28f R14: 00007f4dc2b03300 R15: 0000000000022000 kmemleak: Object (percpu) 0x607f1a639368 (size 8): kmemleak: comm "syz-executor.5", pid 4021, jiffies 4294820423 kmemleak: min_count = 1 kmemleak: count = 0 kmemleak: flags = 0x21 kmemleak: checksum = 0 kmemleak: backtrace: pcpu_alloc_noprof+0x87a/0x1170 percpu_ref_init+0x37/0x400 blkg_alloc+0xe9/0x7d0 blkg_create+0xe08/0x1420 bio_associate_blkg_from_css+0xe06/0x1380 bio_associate_blkg+0x10e/0x2a0 bio_init+0x2dd/0x570 bio_alloc_bioset+0x2cf/0x8c0 submit_bh_wbc+0x286/0x720 ext4_read_bh+0x15a/0x2e0 ext4_read_bh_lock+0x7a/0xd0 ext4_sb_bread_unmovable+0x172/0x260 ext4_fill_super+0x662/0xba20 get_tree_bdev_flags+0x38a/0x620 vfs_get_tree+0x93/0x340 path_mount+0x132d/0x1dd0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=39 sclass=netlink_route_socket pid=4033 comm=syz-executor.3 EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. kmemleak: Cannot insert 0x607f1a63936c into the object search tree (overlaps existing) CPU: 1 UID: 0 PID: 4036 Comm: syz-executor.0 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 __link_object+0x190/0x210 __create_object+0x48/0x80 pcpu_alloc_noprof+0x87a/0x1170 sbitmap_init_node+0x337/0x840 sbitmap_queue_init_node+0x40/0x480 blk_mq_init_tags+0x136/0x2c0 blk_mq_alloc_rq_map+0x18d/0x340 blk_mq_alloc_map_and_rqs+0x58/0x190 __blk_mq_alloc_map_and_rqs+0x12a/0x1f0 blk_mq_alloc_tag_set+0x74c/0x1240 loop_add+0x3b5/0xb60 loop_control_ioctl+0x13b/0x640 __x64_sys_ioctl+0x18f/0x210 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f802364fb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8020bc5188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f8023762f60 RCX: 00007f802364fb19 RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000005 RBP: 00007f80236a9f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc77651bff R14: 00007f8020bc5300 R15: 0000000000022000 kmemleak: Kernel memory leak detector disabled kmemleak: Object (percpu) 0x607f1a639368 (size 8): kmemleak: comm "syz-executor.5", pid 4021, jiffies 4294820423 kmemleak: min_count = 1 kmemleak: count = 0 kmemleak: flags = 0x21 kmemleak: checksum = 0 kmemleak: backtrace: pcpu_alloc_noprof+0x87a/0x1170 percpu_ref_init+0x37/0x400 blkg_alloc+0xe9/0x7d0 blkg_create+0xe08/0x1420 bio_associate_blkg_from_css+0xe06/0x1380 bio_associate_blkg+0x10e/0x2a0 bio_init+0x2dd/0x570 bio_alloc_bioset+0x2cf/0x8c0 submit_bh_wbc+0x286/0x720 ext4_read_bh+0x15a/0x2e0 ext4_read_bh_lock+0x7a/0xd0 ext4_sb_bread_unmovable+0x172/0x260 ext4_fill_super+0x662/0xba20 get_tree_bdev_flags+0x38a/0x620 vfs_get_tree+0x93/0x340 path_mount+0x132d/0x1dd0 kmemleak: Automatic memory scanning thread ended cgroup: No subsys list or none specified EXT4-fs error (device loop5): ext4_validate_block_bitmap:431: comm syz-executor.5: bg 0: block 3: invalid block bitmap SELinux: unrecognized netlink message: protocol=0 nlmsg_type=39 sclass=netlink_route_socket pid=4033 comm=syz-executor.3 cgroup: No subsys list or none specified tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' EXT4-fs (loop5): unmounting filesystem 00000000-0000-0000-0000-000000000000.