================================================================== BUG: KASAN: slab-use-after-free in destroy_device_list+0x195/0x200 fs/f2fs/super.c:1606 Read of size 4 at addr ffff888090a3d77c by task syz-executor.0/13979 CPU: 0 PID: 13979 Comm: syz-executor.0 Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc4/0x620 mm/kasan/report.c:488 kasan_report+0xda/0x110 mm/kasan/report.c:601 destroy_device_list+0x195/0x200 fs/f2fs/super.c:1606 kill_f2fs_super+0x2c6/0x430 fs/f2fs/super.c:4932 deactivate_locked_super+0xbc/0x1a0 fs/super.c:477 mount_bdev+0x277/0x2d0 fs/super.c:1665 legacy_get_tree+0x109/0x220 fs/fs_context.c:662 vfs_get_tree+0x8c/0x370 fs/super.c:1784 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f0d79c7e4aa Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0d7aa66ef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f0d7aa66f80 RCX: 00007f0d79c7e4aa RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 00007f0d7aa66f40 RBP: 00000000200000c0 R08: 00007f0d7aa66f80 R09: 0000000002008410 R10: 0000000002008410 R11: 0000000000000202 R12: 0000000020000080 R13: 00007f0d7aa66f40 R14: 000000000000551a R15: 0000000020001540 Allocated by task 13979: kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:372 [inline] __kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:389 kmalloc include/linux/slab.h:590 [inline] kzalloc include/linux/slab.h:711 [inline] f2fs_fill_super+0xfe/0x8e50 fs/f2fs/super.c:4397 mount_bdev+0x1df/0x2d0 fs/super.c:1663 legacy_get_tree+0x109/0x220 fs/fs_context.c:662 vfs_get_tree+0x8c/0x370 fs/super.c:1784 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Freed by task 13979: kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:634 poison_slab_object mm/kasan/common.c:241 [inline] __kasan_slab_free+0x121/0x1b0 mm/kasan/common.c:257 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2121 [inline] slab_free mm/slub.c:4299 [inline] kfree+0x124/0x360 mm/slub.c:4409 f2fs_fill_super+0x270c/0x8e50 fs/f2fs/super.c:4882 mount_bdev+0x1df/0x2d0 fs/super.c:1663 legacy_get_tree+0x109/0x220 fs/fs_context.c:662 vfs_get_tree+0x8c/0x370 fs/super.c:1784 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b The buggy address belongs to the object at ffff888090a3c000 which belongs to the cache kmalloc-8k of size 8192 The buggy address is located 6012 bytes inside of freed 8192-byte region [ffff888090a3c000, ffff888090a3e000) The buggy address belongs to the physical page: page:ffffea0002428e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x90a38 head:ffffea0002428e00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000840 ffff888013042280 ffffea0002429400 0000000000000005 raw: 0000000000000000 0000000080020002 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0x152820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 780, tgid 780 (kworker/0:2), ts 204803948478, free_ts 0 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2d0/0x350 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0xa28/0x3780 mm/page_alloc.c:3311 __alloc_pages+0x22f/0x2440 mm/page_alloc.c:4567 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] alloc_slab_page mm/slub.c:2190 [inline] allocate_slab mm/slub.c:2354 [inline] new_slab+0xcc/0x3a0 mm/slub.c:2407 ___slab_alloc+0x4af/0x19a0 mm/slub.c:3540 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3625 __slab_alloc_node mm/slub.c:3678 [inline] slab_alloc_node mm/slub.c:3850 [inline] __do_kmalloc_node mm/slub.c:3980 [inline] __kmalloc+0x3b4/0x440 mm/slub.c:3994 kmalloc include/linux/slab.h:594 [inline] kzalloc include/linux/slab.h:711 [inline] __sta_info_alloc+0xa9/0x1de0 net/mac80211/sta_info.c:541 ieee80211_ibss_rx_no_sta+0x302/0x890 net/mac80211/ibss.c:1209 ieee80211_accept_frame net/mac80211/rx.c:4416 [inline] ieee80211_prepare_and_rx_handle+0x160a/0x67c0 net/mac80211/rx.c:4988 ieee80211_rx_for_interface+0x10a/0x1f0 net/mac80211/rx.c:5118 __ieee80211_rx_handle_packet net/mac80211/rx.c:5275 [inline] ieee80211_rx_list+0x1675/0x2e00 net/mac80211/rx.c:5410 ieee80211_rx_napi+0xdd/0x400 net/mac80211/rx.c:5433 ieee80211_rx include/net/mac80211.h:4983 [inline] ieee80211_tasklet_handler+0xd6/0x130 net/mac80211/main.c:318 tasklet_action_common.constprop.0+0x242/0x3d0 kernel/softirq.c:780 __do_softirq+0x21a/0x8de kernel/softirq.c:553 page_owner free stack trace missing Memory state around the buggy address: ffff888090a3d600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888090a3d680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888090a3d700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888090a3d780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888090a3d800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== ================================================================== BUG: KASAN: slab-use-after-free in destroy_device_list+0x1f1/0x200 fs/f2fs/super.c:1613 Read of size 8 at addr ffff888090a3d780 by task syz-executor.0/13979 CPU: 1 PID: 13979 Comm: syz-executor.0 Tainted: G B 6.7.0-syzkaller-09928-g052d534373b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc4/0x620 mm/kasan/report.c:488 kasan_report+0xda/0x110 mm/kasan/report.c:601 destroy_device_list+0x1f1/0x200 fs/f2fs/super.c:1613 kill_f2fs_super+0x2c6/0x430 fs/f2fs/super.c:4932 deactivate_locked_super+0xbc/0x1a0 fs/super.c:477 mount_bdev+0x277/0x2d0 fs/super.c:1665 legacy_get_tree+0x109/0x220 fs/fs_context.c:662 vfs_get_tree+0x8c/0x370 fs/super.c:1784 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f0d79c7e4aa Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0d7aa66ef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f0d7aa66f80 RCX: 00007f0d79c7e4aa RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 00007f0d7aa66f40 RBP: 00000000200000c0 R08: 00007f0d7aa66f80 R09: 0000000002008410 R10: 0000000002008410 R11: 0000000000000202 R12: 0000000020000080 R13: 00007f0d7aa66f40 R14: 000000000000551a R15: 0000000020001540 Allocated by task 13979: kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:372 [inline] __kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:389 kmalloc include/linux/slab.h:590 [inline] kzalloc include/linux/slab.h:711 [inline] f2fs_fill_super+0xfe/0x8e50 fs/f2fs/super.c:4397 mount_bdev+0x1df/0x2d0 fs/super.c:1663 legacy_get_tree+0x109/0x220 fs/fs_context.c:662 vfs_get_tree+0x8c/0x370 fs/super.c:1784 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Freed by task 13979: kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:634 poison_slab_object mm/kasan/common.c:241 [inline] __kasan_slab_free+0x121/0x1b0 mm/kasan/common.c:257 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2121 [inline] slab_free mm/slub.c:4299 [inline] kfree+0x124/0x360 mm/slub.c:4409 f2fs_fill_super+0x270c/0x8e50 fs/f2fs/super.c:4882 mount_bdev+0x1df/0x2d0 fs/super.c:1663 legacy_get_tree+0x109/0x220 fs/fs_context.c:662 vfs_get_tree+0x8c/0x370 fs/super.c:1784 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b The buggy address belongs to the object at ffff888090a3c000 which belongs to the cache kmalloc-8k of size 8192 The buggy address is located 6016 bytes inside of freed 8192-byte region [ffff888090a3c000, ffff888090a3e000) The buggy address belongs to the physical page: page:ffffea0002428e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x90a38 head:ffffea0002428e00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000840 ffff888013042280 ffffea0002429400 0000000000000005 raw: 0000000000000000 0000000080020002 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0x152820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 780, tgid 780 (kworker/0:2), ts 204803948478, free_ts 0 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2d0/0x350 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0xa28/0x3780 mm/page_alloc.c:3311 __alloc_pages+0x22f/0x2440 mm/page_alloc.c:4567 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] alloc_slab_page mm/slub.c:2190 [inline] allocate_slab mm/slub.c:2354 [inline] new_slab+0xcc/0x3a0 mm/slub.c:2407 ___slab_alloc+0x4af/0x19a0 mm/slub.c:3540 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3625 __slab_alloc_node mm/slub.c:3678 [inline] slab_alloc_node mm/slub.c:3850 [inline] __do_kmalloc_node mm/slub.c:3980 [inline] __kmalloc+0x3b4/0x440 mm/slub.c:3994 kmalloc include/linux/slab.h:594 [inline] kzalloc include/linux/slab.h:711 [inline] __sta_info_alloc+0xa9/0x1de0 net/mac80211/sta_info.c:541 ieee80211_ibss_rx_no_sta+0x302/0x890 net/mac80211/ibss.c:1209 ieee80211_accept_frame net/mac80211/rx.c:4416 [inline] ieee80211_prepare_and_rx_handle+0x160a/0x67c0 net/mac80211/rx.c:4988 ieee80211_rx_for_interface+0x10a/0x1f0 net/mac80211/rx.c:5118 __ieee80211_rx_handle_packet net/mac80211/rx.c:5275 [inline] ieee80211_rx_list+0x1675/0x2e00 net/mac80211/rx.c:5410 ieee80211_rx_napi+0xdd/0x400 net/mac80211/rx.c:5433 ieee80211_rx include/net/mac80211.h:4983 [inline] ieee80211_tasklet_handler+0xd6/0x130 net/mac80211/main.c:318 tasklet_action_common.constprop.0+0x242/0x3d0 kernel/softirq.c:780 __do_softirq+0x21a/0x8de kernel/softirq.c:553 page_owner free stack trace missing Memory state around the buggy address: ffff888090a3d680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888090a3d700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888090a3d780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888090a3d800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888090a3d880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== ================================================================== BUG: KASAN: double-free in kill_f2fs_super+0x2ce/0x430 fs/f2fs/super.c:4933 Free of addr ffff888090a3c000 by task syz-executor.0/13979 CPU: 0 PID: 13979 Comm: syz-executor.0 Tainted: G B 6.7.0-syzkaller-09928-g052d534373b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc4/0x620 mm/kasan/report.c:488 kasan_report_invalid_free+0xab/0xd0 mm/kasan/report.c:563 poison_slab_object mm/kasan/common.c:233 [inline] __kasan_slab_free+0x18f/0x1b0 mm/kasan/common.c:257 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2121 [inline] slab_free mm/slub.c:4299 [inline] kfree+0x124/0x360 mm/slub.c:4409 kill_f2fs_super+0x2ce/0x430 fs/f2fs/super.c:4933 deactivate_locked_super+0xbc/0x1a0 fs/super.c:477 mount_bdev+0x277/0x2d0 fs/super.c:1665 legacy_get_tree+0x109/0x220 fs/fs_context.c:662 vfs_get_tree+0x8c/0x370 fs/super.c:1784 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f0d79c7e4aa Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0d7aa66ef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f0d7aa66f80 RCX: 00007f0d79c7e4aa RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 00007f0d7aa66f40 RBP: 00000000200000c0 R08: 00007f0d7aa66f80 R09: 0000000002008410 R10: 0000000002008410 R11: 0000000000000202 R12: 0000000020000080 R13: 00007f0d7aa66f40 R14: 000000000000551a R15: 0000000020001540 Allocated by task 13979: kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:372 [inline] __kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:389 kmalloc include/linux/slab.h:590 [inline] kzalloc include/linux/slab.h:711 [inline] f2fs_fill_super+0xfe/0x8e50 fs/f2fs/super.c:4397 mount_bdev+0x1df/0x2d0 fs/super.c:1663 legacy_get_tree+0x109/0x220 fs/fs_context.c:662 vfs_get_tree+0x8c/0x370 fs/super.c:1784 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Freed by task 13979: kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:634 poison_slab_object mm/kasan/common.c:241 [inline] __kasan_slab_free+0x121/0x1b0 mm/kasan/common.c:257 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2121 [inline] slab_free mm/slub.c:4299 [inline] kfree+0x124/0x360 mm/slub.c:4409 f2fs_fill_super+0x270c/0x8e50 fs/f2fs/super.c:4882 mount_bdev+0x1df/0x2d0 fs/super.c:1663 legacy_get_tree+0x109/0x220 fs/fs_context.c:662 vfs_get_tree+0x8c/0x370 fs/super.c:1784 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b The buggy address belongs to the object at ffff888090a3c000 which belongs to the cache kmalloc-8k of size 8192 The buggy address is located 0 bytes inside of 8192-byte region [ffff888090a3c000, ffff888090a3e000) The buggy address belongs to the physical page: page:ffffea0002428e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x90a38 head:ffffea0002428e00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000840 ffff888013042280 ffffea0002429400 0000000000000005 raw: 0000000000000000 0000000080020002 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0x152820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 780, tgid 780 (kworker/0:2), ts 204803948478, free_ts 0 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2d0/0x350 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0xa28/0x3780 mm/page_alloc.c:3311 __alloc_pages+0x22f/0x2440 mm/page_alloc.c:4567 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] alloc_slab_page mm/slub.c:2190 [inline] allocate_slab mm/slub.c:2354 [inline] new_slab+0xcc/0x3a0 mm/slub.c:2407 ___slab_alloc+0x4af/0x19a0 mm/slub.c:3540 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3625 __slab_alloc_node mm/slub.c:3678 [inline] slab_alloc_node mm/slub.c:3850 [inline] __do_kmalloc_node mm/slub.c:3980 [inline] __kmalloc+0x3b4/0x440 mm/slub.c:3994 kmalloc include/linux/slab.h:594 [inline] kzalloc include/linux/slab.h:711 [inline] __sta_info_alloc+0xa9/0x1de0 net/mac80211/sta_info.c:541 ieee80211_ibss_rx_no_sta+0x302/0x890 net/mac80211/ibss.c:1209 ieee80211_accept_frame net/mac80211/rx.c:4416 [inline] ieee80211_prepare_and_rx_handle+0x160a/0x67c0 net/mac80211/rx.c:4988 ieee80211_rx_for_interface+0x10a/0x1f0 net/mac80211/rx.c:5118 __ieee80211_rx_handle_packet net/mac80211/rx.c:5275 [inline] ieee80211_rx_list+0x1675/0x2e00 net/mac80211/rx.c:5410 ieee80211_rx_napi+0xdd/0x400 net/mac80211/rx.c:5433 ieee80211_rx include/net/mac80211.h:4983 [inline] ieee80211_tasklet_handler+0xd6/0x130 net/mac80211/main.c:318 tasklet_action_common.constprop.0+0x242/0x3d0 kernel/softirq.c:780 __do_softirq+0x21a/0x8de kernel/softirq.c:553 page_owner free stack trace missing Memory state around the buggy address: ffff888090a3bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888090a3bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888090a3c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888090a3c080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888090a3c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================