UDF-fs: INFO Mounting volume 'LiuxUDF', timestamp 2022/11/22 14:59 (1000) ================================================================== BUG: KASAN: slab-out-of-bounds in udf_write_aext+0x6a7/0x7a0 fs/udf/inode.c:2099 Write of size 4 at addr ffff88805944cbf8 by task syz.1.115/4112 CPU: 0 PID: 4112 Comm: syz.1.115 Not tainted 6.1.103-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15f/0x4f0 mm/kasan/report.c:395 kasan_report+0x136/0x160 mm/kasan/report.c:495 udf_write_aext+0x6a7/0x7a0 fs/udf/inode.c:2099 udf_add_entry+0x17b7/0x3350 fs/udf/namei.c:482 udf_mkdir+0x1a8/0xaa0 fs/udf/namei.c:681 vfs_mkdir+0x3b6/0x590 fs/namei.c:4108 do_mkdirat+0x225/0x360 fs/namei.c:4133 __do_sys_mkdirat fs/namei.c:4148 [inline] __se_sys_mkdirat fs/namei.c:4146 [inline] __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4146 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fcf46d76297 Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcf47a71e68 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007fcf47a71ef0 RCX: 00007fcf46d76297 RDX: 00000000000001ff RSI: 0000000020000100 RDI: 00000000ffffff9c RBP: 0000000000000000 R08: 0000000020000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000100 R13: 00007fcf47a71eb0 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 11: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:955 [inline] __kmalloc_node_track_caller+0xb1/0x220 mm/slab_common.c:975 kmalloc_reserve net/core/skbuff.c:446 [inline] __alloc_skb+0x135/0x670 net/core/skbuff.c:515 __netdev_alloc_skb+0xfb/0x500 net/core/skbuff.c:579 netdev_alloc_skb include/linux/skbuff.h:3206 [inline] dev_alloc_skb include/linux/skbuff.h:3219 [inline] __ieee80211_beacon_get+0xc7d/0x2110 net/mac80211/tx.c:5258 ieee80211_beacon_get_tim+0xb1/0x5d0 net/mac80211/tx.c:5340 ieee80211_beacon_get include/net/mac80211.h:5248 [inline] mac80211_hwsim_beacon_tx+0x1d2/0xaa0 drivers/net/wireless/mac80211_hwsim.c:2086 __iterate_interfaces+0x21e/0x4b0 net/mac80211/util.c:788 ieee80211_iterate_active_interfaces_atomic+0xd4/0x170 net/mac80211/util.c:824 mac80211_hwsim_beacon+0xd0/0x1e0 drivers/net/wireless/mac80211_hwsim.c:2142 __run_hrtimer kernel/time/hrtimer.c:1686 [inline] __hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1750 hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1767 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571 __do_softirq kernel/softirq.c:605 [inline] invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 Freed by task 11: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook mm/slub.c:1750 [inline] slab_free mm/slub.c:3661 [inline] __kmem_cache_free+0x25c/0x3c0 mm/slub.c:3674 skb_free_head net/core/skbuff.c:762 [inline] skb_release_data+0x5de/0x7a0 net/core/skbuff.c:791 skb_release_all net/core/skbuff.c:856 [inline] __kfree_skb net/core/skbuff.c:870 [inline] consume_skb+0xa3/0x140 net/core/skbuff.c:1035 mac80211_hwsim_beacon_tx+0x5f8/0xaa0 drivers/net/wireless/mac80211_hwsim.c:2116 __iterate_interfaces+0x21e/0x4b0 net/mac80211/util.c:788 ieee80211_iterate_active_interfaces_atomic+0xd4/0x170 net/mac80211/util.c:824 mac80211_hwsim_beacon+0xd0/0x1e0 drivers/net/wireless/mac80211_hwsim.c:2142 __run_hrtimer kernel/time/hrtimer.c:1686 [inline] __hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1750 hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1767 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571 __do_softirq kernel/softirq.c:605 [inline] invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 The buggy address belongs to the object at ffff88805944c800 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 504 bytes to the right of 512-byte region [ffff88805944c800, ffff88805944ca00) The buggy address belongs to the physical page: page:ffffea0001651300 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5944c head:ffffea0001651300 order:2 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffffea0001651400 dead000000000002 ffff888012841c80 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 2, migratetype Unmovable, gfp_mask 0x52a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 3644, tgid 3644 (syz-executor), ts 55946325082, free_ts 10945599069 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2517 prep_new_page mm/page_alloc.c:2524 [inline] get_page_from_freelist+0x322e/0x33b0 mm/page_alloc.c:4283 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5551 alloc_slab_page+0x6a/0x150 mm/slub.c:1794 allocate_slab mm/slub.c:1939 [inline] new_slab+0x84/0x2d0 mm/slub.c:1992 ___slab_alloc+0xc20/0x1270 mm/slub.c:3180 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] __kmem_cache_alloc_node+0x19f/0x260 mm/slub.c:3437 __do_kmalloc_node mm/slab_common.c:954 [inline] __kmalloc+0xa1/0x230 mm/slab_common.c:968 kmalloc include/linux/slab.h:561 [inline] kzalloc include/linux/slab.h:692 [inline] fib6_info_alloc+0x2c/0xd0 net/ipv6/ip6_fib.c:156 ip6_route_info_create+0x446/0x12c0 net/ipv6/route.c:3754 ip6_route_add+0x22/0x120 net/ipv6/route.c:3848 addrconf_prefix_route net/ipv6/addrconf.c:2443 [inline] addrconf_add_linklocal+0x625/0xae0 net/ipv6/addrconf.c:3244 addrconf_addr_gen+0x856/0xbe0 addrconf_dev_config net/ipv6/addrconf.c:3418 [inline] addrconf_init_auto_addrs+0x945/0xe60 net/ipv6/addrconf.c:3496 addrconf_notify+0xade/0xf60 net/ipv6/addrconf.c:3669 notifier_call_chain kernel/notifier.c:87 [inline] raw_notifier_call_chain+0xd0/0x170 kernel/notifier.c:455 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1444 [inline] free_pcp_prepare mm/page_alloc.c:1494 [inline] free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3362 free_unref_page+0x33/0x3e0 mm/page_alloc.c:3457 free_contig_range+0x9a/0x150 mm/page_alloc.c:9511 destroy_args+0xfe/0x997 mm/debug_vm_pgtable.c:1031 debug_vm_pgtable+0x416/0x46b mm/debug_vm_pgtable.c:1354 do_one_initcall+0x265/0x8f0 init/main.c:1298 do_initcall_level+0x157/0x207 init/main.c:1371 do_initcalls+0x49/0x86 init/main.c:1387 kernel_init_freeable+0x45c/0x60f init/main.c:1626 kernel_init+0x19/0x290 init/main.c:1514 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Memory state around the buggy address: ffff88805944ca80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88805944cb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88805944cb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88805944cc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88805944cc80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================