program: r0 = syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) bind$bt_hci(r0, &(0x7f0000000100)={0x1f, 0xffff, 0x3}, 0x6) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000080)='cpu.stat\x00', 0x275a, 0x0) write$UHID_CREATE2(r1, &(0x7f00000001c0)=ANY=[@ANYBLOB='='], 0x118) syz_mount_image$ocfs2(&(0x7f0000004440), &(0x7f0000000040)='./bus\x00', 0x8c0, &(0x7f0000000600)=ANY=[@ANYBLOB="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"], 0x1, 0x4421, &(0x7f0000008940)="$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r2 = socket$nl_route(0x10, 0x3, 0x0) (async) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000180)={'bridge_slave_1\x00', 0x0}) sendmsg$nl_route(r2, &(0x7f00000018c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000000)=ANY=[@ANYBLOB="280000001e000100000000000000000007000000", @ANYRES32=r4, @ANYBLOB="000100003c09b49300000000000000ec"], 0x28}}, 0x0) r5 = open(&(0x7f0000000180)='./bus\x00', 0x14927e, 0x0) mmap(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x27fffff, 0x4002011, r5, 0x1000) (async) fallocate(r5, 0x0, 0x0, 0x1000f4) (async) sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f000000c2c0)={0x0, 0x0, 0x0}, 0x0) r6 = open(&(0x7f0000000240)='./file1\x00', 0x145142, 0x0) ioctl$TIOCGPKT(r6, 0x80045438, &(0x7f0000000140)) (async) r7 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./bus\x00', 0x40942, 0x0) copy_file_range(r7, 0x0, r6, 0x0, 0xfffffbffa003e458, 0x100000000000000) (async) creat(&(0x7f0000000080)='./file1\x00', 0x0) (async) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x5, 0x12, r1, 0x0) (async, rerun: 64) write$binfmt_misc(r0, &(0x7f0000000000)="0318e70d00000000000000caf4559d66df2db16777eee490a67d5e6bb674a451d9f30c2992853e24baf81ebf372f56e55fc4e2274fae91be1a65d3801a000000000000", 0x43) (async, rerun: 64) r8 = socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000080), r8) sendmsg$ETHTOOL_MSG_TSINFO_GET(r8, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000180)={&(0x7f00000000c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r9, @ANYBLOB="01002dbd7000fedbdf253100000018000180140002"], 0x2c}, 0x1, 0x0, 0x0, 0x2004c890}, 0x2000c800) (async) ioctl$KVM_TDX_CAPABILITIES(r1, 0xc008aeba, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000780)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ""/2000, {0x5, 0x0, [{}, {}, {}, {}, {}]}}}) [ 75.865080][ T5321] Bluetooth: hci0: command tx timeout [ 76.197302][ T5343] loop0: detected capacity change from 0 to 32768 [ 76.224358][ T5343] ======================================================= [ 76.224358][ T5343] WARNING: The mand mount option has been deprecated and [ 76.224358][ T5343] and is ignored by this kernel. Remove the mand [ 76.224358][ T5343] option from the mount to silence this warning. [ 76.224358][ T5343] ======================================================= [ 76.375970][ T5343] JBD2: Ignoring recovery information on journal [ 76.430355][ T5343] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 76.495332][ T26] audit: type=1800 audit(1769246632.741:2): pid=5347 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.0" name="file1" dev="loop0" ino=17059 res=0 errno=0 [ 76.548146][ T5343] ================================================================== [ 76.551786][ T5343] BUG: KASAN: slab-use-after-free in ocfs2_fault+0xda/0x3e0 [ 76.555115][ T5343] Read of size 8 at addr ffff888011a20e18 by task syz.0.0/5343 [ 76.558301][ T5343] [ 76.559292][ T5343] CPU: 0 UID: 0 PID: 5343 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 76.559306][ T5343] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 76.559313][ T5343] Call Trace: [ 76.559321][ T5343] [ 76.559325][ T5343] dump_stack_lvl+0xe8/0x150 [ 76.559342][ T5343] print_report+0xba/0x230 [ 76.559354][ T5343] ? ocfs2_fault+0xda/0x3e0 [ 76.559365][ T5343] kasan_report+0x117/0x150 [ 76.559376][ T5343] ? ocfs2_fault+0xda/0x3e0 [ 76.559388][ T5343] ocfs2_fault+0xda/0x3e0 [ 76.559399][ T5343] ? __pfx_ocfs2_fault+0x10/0x10 [ 76.559408][ T5343] ? css_rstat_updated+0x23a/0x530 [ 76.559425][ T5343] __do_fault+0x138/0x390 [ 76.559440][ T5343] do_pte_missing+0x2206/0x3310 [ 76.559457][ T5343] ? handle_mm_fault+0xee/0x32a0 [ 76.559470][ T5343] handle_mm_fault+0x1b8c/0x32a0 [ 76.559486][ T5343] ? handle_mm_fault+0xee/0x32a0 [ 76.559500][ T5343] ? __pfx_handle_mm_fault+0x10/0x10 [ 76.559512][ T5343] ? follow_page_pte+0x825/0x1460 [ 76.559521][ T5343] ? __pfx_follow_page_pte+0x10/0x10 [ 76.559530][ T5343] __get_user_pages+0x165b/0x29d0 [ 76.559542][ T5343] populate_vma_page_range+0x2be/0x3c0 [ 76.559550][ T5343] ? __pfx_populate_vma_page_range+0x10/0x10 [ 76.559559][ T5343] ? down_read+0x272/0x2e0 [ 76.559618][ T5343] ? __mm_populate+0x173/0x390 [ 76.559629][ T5343] __mm_populate+0x25f/0x390 [ 76.559640][ T5343] ? __pfx___mm_populate+0x10/0x10 [ 76.559654][ T5343] vm_mmap_pgoff+0x3aa/0x4f0 [ 76.559666][ T5343] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 76.559678][ T5343] ? __fget_files+0x2a/0x420 [ 76.559690][ T5343] ? __fget_files+0x3a0/0x420 [ 76.559700][ T5343] ? __fget_files+0x2a/0x420 [ 76.559710][ T5343] ksys_mmap_pgoff+0x51e/0x760 [ 76.559726][ T5343] do_syscall_64+0xe2/0xf80 [ 76.559739][ T5343] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.559749][ T5343] ? trace_irq_disable+0x37/0x100 [ 76.559762][ T5343] ? clear_bhb_loop+0x60/0xb0 [ 76.559774][ T5343] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.559785][ T5343] RIP: 0033:0x7f54d939acb9 [ 76.559797][ T5343] 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 [ 76.559806][ T5343] RSP: 002b:00007f54d57f5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 76.559817][ T5343] RAX: ffffffffffffffda RBX: 00007f54d9615fa0 RCX: 00007f54d939acb9 [ 76.559825][ T5343] RDX: 00000000027fffff RSI: 0000000000600000 RDI: 0000200000000000 [ 76.559831][ T5343] RBP: 00007f54d9408bf7 R08: 0000000000000008 R09: 0000000000001000 [ 76.559837][ T5343] R10: 0000000004002011 R11: 0000000000000246 R12: 0000000000000000 [ 76.559844][ T5343] R13: 00007f54d9616038 R14: 00007f54d9615fa0 R15: 00007ffea36a7f38 [ 76.559861][ T5343] [ 76.559865][ T5343] [ 76.678084][ T5343] Allocated by task 5343: [ 76.679843][ T5343] kasan_save_track+0x3e/0x80 [ 76.681922][ T5343] __kasan_slab_alloc+0x6c/0x80 [ 76.684261][ T5343] kmem_cache_alloc_noprof+0x370/0x6e0 [ 76.686699][ T5343] vm_area_alloc+0x24/0x140 [ 76.688740][ T5343] mmap_region+0xf85/0x1f40 [ 76.690747][ T5343] do_mmap+0xc39/0x10c0 [ 76.692605][ T5343] vm_mmap_pgoff+0x2c9/0x4f0 [ 76.694670][ T5343] ksys_mmap_pgoff+0x51e/0x760 [ 76.696761][ T5343] do_syscall_64+0xe2/0xf80 [ 76.698716][ T5343] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.701313][ T5343] [ 76.702467][ T5343] Freed by task 15: [ 76.704486][ T5343] kasan_save_track+0x3e/0x80 [ 76.707022][ T5343] kasan_save_free_info+0x46/0x50 [ 76.709320][ T5343] __kasan_slab_free+0x5c/0x80 [ 76.711482][ T5343] slab_free_after_rcu_debug+0x127/0x250 [ 76.713930][ T5343] rcu_core+0xc9e/0x1750 [ 76.715876][ T5343] handle_softirqs+0x22a/0x7c0 [ 76.718053][ T5343] run_ksoftirqd+0x36/0x60 [ 76.720077][ T5343] smpboot_thread_fn+0x541/0xa50 [ 76.722406][ T5343] kthread+0x726/0x8b0 [ 76.724240][ T5343] ret_from_fork+0x51b/0xa40 [ 76.726252][ T5343] ret_from_fork_asm+0x1a/0x30 [ 76.728225][ T5343] [ 76.729266][ T5343] Last potentially related work creation: [ 76.731696][ T5343] kasan_save_stack+0x3e/0x60 [ 76.733768][ T5343] kasan_record_aux_stack+0xbd/0xd0 [ 76.736186][ T5343] kmem_cache_free+0x46e/0x610 [ 76.738395][ T5343] vms_complete_munmap_vmas+0x625/0x890 [ 76.740855][ T5343] __mmap_complete+0x7b/0x610 [ 76.743024][ T5343] mmap_region+0x141b/0x1f40 [ 76.744837][ T5343] do_mmap+0xc39/0x10c0 [ 76.746684][ T5343] vm_mmap_pgoff+0x2c9/0x4f0 [ 76.748808][ T5343] ksys_mmap_pgoff+0x51e/0x760 [ 76.751022][ T5343] do_syscall_64+0xe2/0xf80 [ 76.753086][ T5343] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.755614][ T5343] [ 76.756694][ T5343] The buggy address belongs to the object at ffff888011a20dc0 [ 76.756694][ T5343] which belongs to the cache vm_area_struct of size 256 [ 76.762523][ T5343] The buggy address is located 88 bytes inside of [ 76.762523][ T5343] freed 256-byte region [ffff888011a20dc0, ffff888011a20ec0) [ 76.767953][ T5343] [ 76.769012][ T5343] The buggy address belongs to the physical page: [ 76.771966][ T5343] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11a20 [ 76.775496][ T5343] memcg:ffff888012209781 [ 76.777219][ T5343] anon flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) [ 76.780419][ T5343] page_type: f5(slab) [ 76.782424][ T5343] raw: 00fff00000000000 ffff88801bad3b40 0000000000000000 dead000000000001 [ 76.786590][ T5343] raw: 0000000000000000 00000000000c000c 00000000f5000000 ffff888012209781 [ 76.791034][ T5343] page dumped because: kasan: bad access detected [ 76.793991][ T5343] page_owner tracks the page as allocated [ 76.796742][ T5343] page last allocated via order 0, migratetype Unmovable, gfp_mask 0xd2cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 4721, tgid 4721 (syslogd), ts 29879704470, free_ts 29866008825 [ 76.805704][ T5343] post_alloc_hook+0x228/0x280 [ 76.807979][ T5343] get_page_from_freelist+0x24dc/0x2580 [ 76.810622][ T5343] __alloc_frozen_pages_noprof+0x18d/0x380 [ 76.813689][ T5343] alloc_pages_mpol+0x232/0x4a0 [ 76.816152][ T5343] allocate_slab+0x86/0x3a0 [ 76.818456][ T5343] ___slab_alloc+0xd82/0x1760 [ 76.820599][ T5343] __kmem_cache_alloc_bulk+0x1ab/0x4d0 [ 76.823059][ T5343] __pcs_replace_empty_main+0x296/0x560 [ 76.825426][ T5343] kmem_cache_alloc_noprof+0x454/0x6e0 [ 76.828086][ T5343] vm_area_dup+0x2b/0x680 [ 76.830127][ T5343] __split_vma+0x1d5/0xa50 [ 76.832286][ T5343] vma_modify+0x1343/0x1aa0 [ 76.834414][ T5343] vma_modify_flags+0x24b/0x330 [ 76.836616][ T5343] mprotect_fixup+0x46a/0xa50 [ 76.838784][ T5343] do_mprotect_pkey+0x8ab/0xcd0 [ 76.841035][ T5343] __x64_sys_mprotect+0x80/0x90 [ 76.843253][ T5343] page last free pid 15 tgid 15 stack trace: [ 76.845961][ T5343] __free_frozen_pages+0xbb0/0xd10 [ 76.848230][ T5343] tlb_remove_table_rcu+0x85/0x100 [ 76.850088][ T5343] rcu_core+0xc9e/0x1750 [ 76.852089][ T5343] handle_softirqs+0x22a/0x7c0 [ 76.854161][ T5343] run_ksoftirqd+0x36/0x60 [ 76.856133][ T5343] smpboot_thread_fn+0x541/0xa50 [ 76.858293][ T5343] kthread+0x726/0x8b0 [ 76.859996][ T5343] ret_from_fork+0x51b/0xa40 [ 76.862242][ T5343] ret_from_fork_asm+0x1a/0x30 [ 76.864384][ T5343] [ 76.865448][ T5343] Memory state around the buggy address: [ 76.868042][ T5343] ffff888011a20d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 76.871698][ T5343] ffff888011a20d80: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 76.875048][ T5343] >ffff888011a20e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 76.878702][ T5343] ^ [ 76.881464][ T5343] ffff888011a20e80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 76.885083][ T5343] ffff888011a20f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 76.888588][ T5343] ================================================================== [ 76.918994][ T5343] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 76.922201][ T5343] CPU: 0 UID: 0 PID: 5343 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 76.925993][ T5343] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 76.930471][ T5343] Call Trace: [ 76.931979][ T5343] [ 76.933153][ T5343] vpanic+0x1e0/0x670 [ 76.934822][ T5343] panic+0xc5/0xd0 [ 76.936367][ T5343] ? __pfx_panic+0x10/0x10 [ 76.938293][ T5343] ? preempt_schedule_thunk+0x16/0x30 [ 76.940751][ T5343] ? ocfs2_fault+0xda/0x3e0 [ 76.943147][ T5343] check_panic_on_warn+0x89/0xb0 [ 76.945833][ T5343] ? ocfs2_fault+0xda/0x3e0 [ 76.948316][ T5343] end_report+0x6f/0x140 [ 76.950517][ T5343] kasan_report+0x128/0x150 [ 76.952590][ T5343] ? ocfs2_fault+0xda/0x3e0 [ 76.954661][ T5343] ocfs2_fault+0xda/0x3e0 [ 76.956547][ T5343] ? __pfx_ocfs2_fault+0x10/0x10 [ 76.958774][ T5343] ? css_rstat_updated+0x23a/0x530 [ 76.961121][ T5343] __do_fault+0x138/0x390 [ 76.963076][ T5343] do_pte_missing+0x2206/0x3310 [ 76.965070][ T5343] ? handle_mm_fault+0xee/0x32a0 [ 76.967541][ T5343] handle_mm_fault+0x1b8c/0x32a0 [ 76.969659][ T5343] ? handle_mm_fault+0xee/0x32a0 [ 76.971789][ T5343] ? __pfx_handle_mm_fault+0x10/0x10 [ 76.973800][ T5343] ? follow_page_pte+0x825/0x1460 [ 76.975870][ T5343] ? __pfx_follow_page_pte+0x10/0x10 [ 76.978360][ T5343] __get_user_pages+0x165b/0x29d0 [ 76.980316][ T5343] populate_vma_page_range+0x2be/0x3c0 [ 76.982304][ T5343] ? __pfx_populate_vma_page_range+0x10/0x10 [ 76.984767][ T5343] ? down_read+0x272/0x2e0 [ 76.986620][ T5343] ? __mm_populate+0x173/0x390 [ 76.988482][ T5343] __mm_populate+0x25f/0x390 [ 76.990260][ T5343] ? __pfx___mm_populate+0x10/0x10 [ 76.992372][ T5343] vm_mmap_pgoff+0x3aa/0x4f0 [ 76.994190][ T5343] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 76.996179][ T5343] ? __fget_files+0x2a/0x420 [ 76.997882][ T5343] ? __fget_files+0x3a0/0x420 [ 76.999771][ T5343] ? __fget_files+0x2a/0x420 [ 77.001698][ T5343] ksys_mmap_pgoff+0x51e/0x760 [ 77.003635][ T5343] do_syscall_64+0xe2/0xf80 [ 77.005461][ T5343] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.007903][ T5343] ? trace_irq_disable+0x37/0x100 [ 77.009786][ T5343] ? clear_bhb_loop+0x60/0xb0 [ 77.011520][ T5343] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.013551][ T5343] RIP: 0033:0x7f54d939acb9 [ 77.015289][ T5343] 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 [ 77.022642][ T5343] RSP: 002b:00007f54d57f5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 77.026013][ T5343] RAX: ffffffffffffffda RBX: 00007f54d9615fa0 RCX: 00007f54d939acb9 [ 77.029738][ T5343] RDX: 00000000027fffff RSI: 0000000000600000 RDI: 0000200000000000 [ 77.033167][ T5343] RBP: 00007f54d9408bf7 R08: 0000000000000008 R09: 0000000000001000 [ 77.036699][ T5343] R10: 0000000004002011 R11: 0000000000000246 R12: 0000000000000000 [ 77.039793][ T5343] R13: 00007f54d9616038 R14: 00007f54d9615fa0 R15: 00007ffea36a7f38 [ 77.043277][ T5343] [ 77.044892][ T5343] Kernel Offset: disabled [ 77.046838][ T5343] Rebooting in 86400 seconds..