================================================================== BUG: KASAN: slab-out-of-bounds in instrument_atomic_read include/linux/instrumented.h:71 [inline] BUG: KASAN: slab-out-of-bounds in atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline] BUG: KASAN: slab-out-of-bounds in refcount_read include/linux/refcount.h:147 [inline] BUG: KASAN: slab-out-of-bounds in __refcount_add_not_zero include/linux/refcount.h:152 [inline] BUG: KASAN: slab-out-of-bounds in __refcount_inc_not_zero include/linux/refcount.h:227 [inline] BUG: KASAN: slab-out-of-bounds in refcount_inc_not_zero include/linux/refcount.h:245 [inline] BUG: KASAN: slab-out-of-bounds in sk_psock_get+0x123/0x410 include/linux/skmsg.h:439 Read of size 4 at addr ffff88801c6d02b8 by task syz-executor104/3559 CPU: 1 PID: 3559 Comm: syz-executor104 Not tainted 5.17.0-next-20220401-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0xeb/0x495 mm/kasan/report.c:313 print_report mm/kasan/report.c:429 [inline] kasan_report.cold+0xf4/0x1c6 mm/kasan/report.c:491 check_region_inline mm/kasan/generic.c:183 [inline] kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189 instrument_atomic_read include/linux/instrumented.h:71 [inline] atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline] refcount_read include/linux/refcount.h:147 [inline] __refcount_add_not_zero include/linux/refcount.h:152 [inline] __refcount_inc_not_zero include/linux/refcount.h:227 [inline] refcount_inc_not_zero include/linux/refcount.h:245 [inline] sk_psock_get+0x123/0x410 include/linux/skmsg.h:439 tls_sw_recvmsg+0x195/0x15a0 net/tls/tls_sw.c:1783 inet6_recvmsg+0x11b/0x5e0 net/ipv6/af_inet6.c:671 sock_recvmsg_nosec net/socket.c:948 [inline] sock_recvmsg net/socket.c:966 [inline] sock_recvmsg net/socket.c:962 [inline] ____sys_recvmsg+0x2be/0x5f0 net/socket.c:2632 ___sys_recvmsg+0x127/0x200 net/socket.c:2674 do_recvmmsg+0x24d/0x6d0 net/socket.c:2768 __sys_recvmmsg net/socket.c:2847 [inline] __do_sys_recvmmsg net/socket.c:2870 [inline] __se_sys_recvmmsg net/socket.c:2863 [inline] __x64_sys_recvmmsg+0x20b/0x260 net/socket.c:2863 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fc1ae78a6a9 Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff71c678e8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc1ae78a6a9 RDX: 000000000000000a RSI: 00000000200030c0 RDI: 0000000000000005 RBP: 00007fc1ae74e690 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000010000 R11: 0000000000000246 R12: 00007fc1ae74e720 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 3559: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:41 kasan_set_track mm/kasan/common.c:48 [inline] set_alloc_info mm/kasan/common.c:439 [inline] __kasan_slab_alloc+0x90/0xc0 mm/kasan/common.c:472 kasan_slab_alloc include/linux/kasan.h:224 [inline] slab_post_alloc_hook mm/slab.h:749 [inline] slab_alloc_node mm/slub.c:3217 [inline] slab_alloc mm/slub.c:3225 [inline] __kmem_cache_alloc_lru mm/slub.c:3232 [inline] kmem_cache_alloc+0x204/0x3b0 mm/slub.c:3242 kmem_cache_zalloc include/linux/slab.h:704 [inline] kcm_attach net/kcm/kcmsock.c:1405 [inline] kcm_attach_ioctl net/kcm/kcmsock.c:1490 [inline] kcm_ioctl+0x7f1/0x1180 net/kcm/kcmsock.c:1696 sock_do_ioctl+0xcc/0x230 net/socket.c:1122 sock_ioctl+0x2f1/0x640 net/socket.c:1239 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Last potentially related work creation: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:41 __kasan_record_aux_stack+0xbe/0xd0 mm/kasan/generic.c:348 insert_work+0x48/0x350 kernel/workqueue.c:1358 __queue_work+0x62e/0x1140 kernel/workqueue.c:1517 queue_work_on+0xee/0x110 kernel/workqueue.c:1545 kcm_attach net/kcm/kcmsock.c:1466 [inline] kcm_attach_ioctl net/kcm/kcmsock.c:1490 [inline] kcm_ioctl+0xede/0x1180 net/kcm/kcmsock.c:1696 sock_do_ioctl+0xcc/0x230 net/socket.c:1122 sock_ioctl+0x2f1/0x640 net/socket.c:1239 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae The buggy address belongs to the object at ffff88801c6d0000 which belongs to the cache kcm_psock_cache of size 568 The buggy address is located 128 bytes to the right of 568-byte region [ffff88801c6d0000, ffff88801c6d0238) The buggy address belongs to the physical page: page:ffffea000071b400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1c6d0 head:ffffea000071b400 order:2 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888022f8a640 raw: 0000000000000000 0000000080170017 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 3559, tgid 3559 (syz-executor104), ts 50498933954, free_ts 42635232987 prep_new_page mm/page_alloc.c:2441 [inline] get_page_from_freelist+0xba2/0x3de0 mm/page_alloc.c:4182 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5403 alloc_pages+0x1aa/0x310 mm/mempolicy.c:2262 alloc_slab_page mm/slub.c:1799 [inline] allocate_slab+0x26c/0x3c0 mm/slub.c:1944 new_slab mm/slub.c:2004 [inline] ___slab_alloc+0x8df/0xf20 mm/slub.c:3005 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3092 slab_alloc_node mm/slub.c:3183 [inline] slab_alloc mm/slub.c:3225 [inline] __kmem_cache_alloc_lru mm/slub.c:3232 [inline] kmem_cache_alloc+0x360/0x3b0 mm/slub.c:3242 kmem_cache_zalloc include/linux/slab.h:704 [inline] kcm_attach net/kcm/kcmsock.c:1405 [inline] kcm_attach_ioctl net/kcm/kcmsock.c:1490 [inline] kcm_ioctl+0x7f1/0x1180 net/kcm/kcmsock.c:1696 sock_do_ioctl+0xcc/0x230 net/socket.c:1122 sock_ioctl+0x2f1/0x640 net/socket.c:1239 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1356 [inline] free_pcp_prepare+0x549/0xd20 mm/page_alloc.c:1406 free_unref_page_prepare mm/page_alloc.c:3328 [inline] free_unref_page+0x19/0x690 mm/page_alloc.c:3423 qlink_free mm/kasan/quarantine.c:157 [inline] qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:176 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:283 __kasan_slab_alloc+0xa2/0xc0 mm/kasan/common.c:449 kasan_slab_alloc include/linux/kasan.h:224 [inline] slab_post_alloc_hook mm/slab.h:749 [inline] slab_alloc_node mm/slub.c:3217 [inline] slab_alloc mm/slub.c:3225 [inline] kmem_cache_alloc_trace+0x26d/0x3f0 mm/slub.c:3256 kmalloc include/linux/slab.h:581 [inline] tomoyo_print_header security/tomoyo/audit.c:156 [inline] tomoyo_init_log+0x18a/0x1ed0 security/tomoyo/audit.c:255 tomoyo_supervisor+0x34d/0xf00 security/tomoyo/common.c:2088 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline] tomoyo_path_permission security/tomoyo/file.c:587 [inline] tomoyo_path_permission+0x270/0x3a0 security/tomoyo/file.c:573 tomoyo_path_perm+0x2f0/0x400 security/tomoyo/file.c:838 security_inode_getattr+0xcf/0x140 security/security.c:1350 vfs_getattr fs/stat.c:157 [inline] vfs_statx+0x16a/0x390 fs/stat.c:232 vfs_fstatat+0x8c/0xb0 fs/stat.c:255 __do_sys_newfstatat+0x91/0x110 fs/stat.c:426 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Memory state around the buggy address: ffff88801c6d0180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88801c6d0200: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc >ffff88801c6d0280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88801c6d0300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88801c6d0380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc 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