Warning: Permanently added '[localhost]:39542' (ED25519) to the list of known hosts. executing program [ 69.294792][ T785] ================================================================== [ 69.297657][ T785] BUG: KASAN: slab-use-after-free in __list_del_entry_valid_or_report+0x2f/0x140 [ 69.301022][ T785] Read of size 8 at addr ffff888042d45f88 by task kworker/0:2/785 [ 69.304707][ T785] [ 69.305730][ T785] CPU: 0 UID: 0 PID: 785 Comm: kworker/0:2 Not tainted 6.12.0-rc7-syzkaller-00125-gcfaaa7d010d1 #0 [ 69.309444][ T785] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 69.313359][ T785] Workqueue: events binder_deferred_func [ 69.315591][ T785] Call Trace: [ 69.316711][ T785] [ 69.317855][ T785] dump_stack_lvl+0x241/0x360 [ 69.319686][ T785] ? __pfx_dump_stack_lvl+0x10/0x10 [ 69.321637][ T785] ? __pfx__printk+0x10/0x10 [ 69.323475][ T785] ? _printk+0xd5/0x120 [ 69.325049][ T785] ? __virt_addr_valid+0x183/0x530 [ 69.326951][ T785] ? __virt_addr_valid+0x183/0x530 [ 69.328665][ T785] print_report+0x169/0x550 [ 69.330339][ T785] ? __virt_addr_valid+0x183/0x530 [ 69.332209][ T785] ? __virt_addr_valid+0x183/0x530 [ 69.334102][ T785] ? __virt_addr_valid+0x45f/0x530 [ 69.335930][ T785] ? __phys_addr+0xba/0x170 [ 69.337602][ T785] ? __list_del_entry_valid_or_report+0x2f/0x140 [ 69.339969][ T785] kasan_report+0x143/0x180 [ 69.341676][ T785] ? __list_del_entry_valid_or_report+0x2f/0x140 [ 69.344134][ T785] __list_del_entry_valid_or_report+0x2f/0x140 [ 69.346416][ T785] binder_release_work+0xc7/0x480 [ 69.348262][ T785] binder_deferred_func+0x1275/0x1460 [ 69.350255][ T785] ? process_scheduled_works+0x976/0x1850 [ 69.352342][ T785] process_scheduled_works+0xa63/0x1850 [ 69.354417][ T785] ? __pfx_process_scheduled_works+0x10/0x10 [ 69.356593][ T785] ? assign_work+0x364/0x3d0 [ 69.358278][ T785] worker_thread+0x870/0xd30 [ 69.359957][ T785] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 69.362142][ T785] ? __kthread_parkme+0x169/0x1d0 [ 69.363988][ T785] ? __pfx_worker_thread+0x10/0x10 [ 69.365936][ T785] kthread+0x2f0/0x390 [ 69.367479][ T785] ? __pfx_worker_thread+0x10/0x10 [ 69.369390][ T785] ? __pfx_kthread+0x10/0x10 [ 69.371209][ T785] ret_from_fork+0x4b/0x80 [ 69.372890][ T785] ? __pfx_kthread+0x10/0x10 [ 69.374657][ T785] ret_from_fork_asm+0x1a/0x30 [ 69.376434][ T785] [ 69.377576][ T785] [ 69.378471][ T785] Allocated by task 5312: [ 69.379954][ T785] kasan_save_track+0x3f/0x80 [ 69.381571][ T785] __kasan_kmalloc+0x98/0xb0 [ 69.383331][ T785] __kmalloc_cache_noprof+0x19c/0x2c0 [ 69.385381][ T785] binder_ioctl_write_read+0xe7f/0xb560 [ 69.387320][ T785] binder_ioctl+0x436/0x1cc0 [ 69.389051][ T785] __se_sys_ioctl+0xf9/0x170 [ 69.390763][ T785] do_syscall_64+0xf3/0x230 [ 69.392458][ T785] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.394680][ T785] [ 69.395551][ T785] Freed by task 785: [ 69.396959][ T785] kasan_save_track+0x3f/0x80 [ 69.398655][ T785] kasan_save_free_info+0x40/0x50 [ 69.400408][ T785] __kasan_slab_free+0x59/0x70 [ 69.402114][ T785] kfree+0x1a0/0x440 [ 69.403567][ T785] binder_deferred_func+0x11df/0x1460 [ 69.405572][ T785] process_scheduled_works+0xa63/0x1850 [ 69.407570][ T785] worker_thread+0x870/0xd30 [ 69.409229][ T785] kthread+0x2f0/0x390 [ 69.410706][ T785] ret_from_fork+0x4b/0x80 [ 69.412368][ T785] ret_from_fork_asm+0x1a/0x30 [ 69.414114][ T785] [ 69.414980][ T785] The buggy address belongs to the object at ffff888042d45f80 [ 69.414980][ T785] which belongs to the cache kmalloc-64 of size 64 [ 69.419746][ T785] The buggy address is located 8 bytes inside of [ 69.419746][ T785] freed 64-byte region [ffff888042d45f80, ffff888042d45fc0) [ 69.424532][ T785] [ 69.425415][ T785] The buggy address belongs to the physical page: [ 69.427642][ T785] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x42d45 [ 69.430604][ T785] flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff) [ 69.433318][ T785] page_type: f5(slab) [ 69.434741][ T785] raw: 04fff00000000000 ffff88801ac418c0 ffffea0000e11b00 dead000000000004 [ 69.437802][ T785] raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000 [ 69.440982][ T785] page dumped because: kasan: bad access detected [ 69.443354][ T785] page_owner tracks the page as allocated [ 69.445441][ T785] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 4740, tgid 4740 (udevd), ts 42701159840, free_ts 41163046173 [ 69.452103][ T785] post_alloc_hook+0x1f3/0x230 [ 69.453907][ T785] get_page_from_freelist+0x3649/0x3790 [ 69.456001][ T785] __alloc_pages_noprof+0x292/0x710 [ 69.457960][ T785] alloc_pages_mpol_noprof+0x3e8/0x680 [ 69.459955][ T785] alloc_slab_page+0x6a/0x140 [ 69.461668][ T785] allocate_slab+0x5a/0x2f0 [ 69.463332][ T785] ___slab_alloc+0xcd1/0x14b0 [ 69.465071][ T785] __slab_alloc+0x58/0xa0 [ 69.466710][ T785] __kmalloc_noprof+0x25a/0x400 [ 69.468483][ T785] tomoyo_encode+0x26f/0x540 [ 69.470191][ T785] tomoyo_realpath_from_path+0x59e/0x5e0 [ 69.472210][ T785] tomoyo_path_number_perm+0x23a/0x880 [ 69.474266][ T785] tomoyo_path_mknod+0x176/0x1b0 [ 69.476058][ T785] security_path_mknod+0x181/0x3a0 [ 69.477893][ T785] path_openat+0xe2f/0x3590 [ 69.479599][ T785] do_filp_open+0x235/0x490 [ 69.481327][ T785] page last free pid 4736 tgid 4736 stack trace: [ 69.483595][ T785] free_unref_page+0xdf9/0x1140 [ 69.485454][ T785] __slab_free+0x31b/0x3d0 [ 69.487112][ T785] qlist_free_all+0x9a/0x140 [ 69.488794][ T785] kasan_quarantine_reduce+0x14f/0x170 [ 69.490810][ T785] __kasan_slab_alloc+0x23/0x80 [ 69.492590][ T785] kmem_cache_alloc_noprof+0x135/0x2a0 [ 69.494590][ T785] getname_flags+0xb7/0x540 [ 69.496278][ T785] __x64_sys_rename+0x5d/0x90 [ 69.497853][ T785] do_syscall_64+0xf3/0x230 [ 69.499418][ T785] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.501608][ T785] [ 69.502513][ T785] Memory state around the buggy address: [ 69.504544][ T785] ffff888042d45e80: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc [ 69.507676][ T785] ffff888042d45f00: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc [ 69.510799][ T785] >ffff888042d45f80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 69.513631][ T785] ^ [ 69.515258][ T785] ffff888042d46000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 69.518239][ T785] ffff888042d46080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 69.521249][ T785] ================================================================== [ 69.524443][ T785] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 69.527124][ T785] CPU: 0 UID: 0 PID: 785 Comm: kworker/0:2 Not tainted 6.12.0-rc7-syzkaller-00125-gcfaaa7d010d1 #0 [ 69.530957][ T785] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 69.534975][ T785] Workqueue: events binder_deferred_func [ 69.537107][ T785] Call Trace: [ 69.538439][ T785] [ 69.539566][ T785] dump_stack_lvl+0x241/0x360 [ 69.541309][ T785] ? __pfx_dump_stack_lvl+0x10/0x10 [ 69.543225][ T785] ? __pfx__printk+0x10/0x10 [ 69.544887][ T785] ? lock_release+0xbf/0xa30 [ 69.546583][ T785] ? vscnprintf+0x5d/0x90 [ 69.548180][ T785] panic+0x349/0x880 [ 69.549654][ T785] ? check_panic_on_warn+0x21/0xb0 [ 69.551452][ T785] ? __pfx_panic+0x10/0x10 [ 69.553108][ T785] ? mark_lock+0x9a/0x360 [ 69.554664][ T785] ? _raw_spin_unlock_irqrestore+0xd8/0x140 [ 69.556881][ T785] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 69.559032][ T785] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 69.561365][ T785] ? print_report+0x502/0x550 [ 69.563048][ T785] check_panic_on_warn+0x86/0xb0 [ 69.564950][ T785] ? __list_del_entry_valid_or_report+0x2f/0x140 [ 69.567267][ T785] end_report+0x77/0x160 [ 69.568828][ T785] kasan_report+0x154/0x180 [ 69.570560][ T785] ? __list_del_entry_valid_or_report+0x2f/0x140 [ 69.572902][ T785] __list_del_entry_valid_or_report+0x2f/0x140 [ 69.575188][ T785] binder_release_work+0xc7/0x480 [ 69.577017][ T785] binder_deferred_func+0x1275/0x1460 [ 69.579035][ T785] ? process_scheduled_works+0x976/0x1850 [ 69.581136][ T785] process_scheduled_works+0xa63/0x1850 [ 69.583275][ T785] ? __pfx_process_scheduled_works+0x10/0x10 [ 69.585545][ T785] ? assign_work+0x364/0x3d0 [ 69.587284][ T785] worker_thread+0x870/0xd30 [ 69.588978][ T785] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 69.591191][ T785] ? __kthread_parkme+0x169/0x1d0 [ 69.593137][ T785] ? __pfx_worker_thread+0x10/0x10 [ 69.595058][ T785] kthread+0x2f0/0x390 [ 69.596573][ T785] ? __pfx_worker_thread+0x10/0x10 [ 69.598571][ T785] ? __pfx_kthread+0x10/0x10 [ 69.600228][ T785] ret_from_fork+0x4b/0x80 [ 69.601962][ T785] ? __pfx_kthread+0x10/0x10 [ 69.603663][ T785] ret_from_fork_asm+0x1a/0x30 [ 69.605423][ T785] [ 69.606902][ T785] Kernel Offset: disabled [ 69.608572][ T785] Rebooting in 86400 seconds.. VM DIAGNOSIS: 08:21:56 Registers: info registers vcpu 0 CPU#0 RAX=0000000000000074 RBX=ffffffff9a71cee0 RCX=0000000000000000 RDX=00000000000003f8 RSI=0000000000000000 RDI=0000000000000020 RBP=0000000000000000 RSP=ffffc900017572b0 R8 =ffffffff854b494b R9 =1ffff11006777046 R10=dffffc0000000000 R11=ffffffff854b4900 R12=dffffc0000000000 R13=ffffffff9a417f08 R14=0000000000000074 R15=00000000000003f8 RIP=ffffffff854b497e RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffff88801fc00000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f9e1e09c0e0 CR3=0000000043858000 CR4=00352ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 Opmask00=00000000ffe000d0 Opmask01=0000000000000001 Opmask02=00000000fff7ffff Opmask03=0000000000000000 Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 65646e69622f7366 7265646e69622f2e ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffce8686a80 0000003000000010 ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f9e1e0a4260 00007f9e1e098558 ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f9e1e08a264 00007f9e1e09d260 ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2525252525252525 2525252525252525 2525252525252525 2525252525252525 ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 7865006a64615f65 726f63735f6d6f6f 2f666c65732f636f 72702f0030303031 ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 5d40004f41445f40 574a46565f484a4a 0a434940560a464a 57550a0015151514 ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000