Free swap = 0kB Total swap = 0kB 2097051 pages RAM 0 pages HighMem/MovableOnly 384502 pages reserved 0 pages cma reserved ================================================================== BUG: KASAN: use-after-free in rxe_queue_cleanup+0xf4/0x100 drivers/infiniband/sw/rxe/rxe_queue.c:193 Read of size 8 at addr ffff888077beee90 by task syz-executor.3/27697 CPU: 0 PID: 27697 Comm: syz-executor.3 Not tainted 5.16.0-rc2-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+0x8d/0x2ed mm/kasan/report.c:247 __kasan_report mm/kasan/report.c:433 [inline] kasan_report.cold+0x83/0xdf mm/kasan/report.c:450 rxe_queue_cleanup+0xf4/0x100 drivers/infiniband/sw/rxe/rxe_queue.c:193 rxe_qp_do_cleanup+0x5d/0xa60 drivers/infiniband/sw/rxe/rxe_qp.c:804 execute_in_process_context+0x37/0x150 kernel/workqueue.c:3359 rxe_elem_release+0x9f/0x180 drivers/infiniband/sw/rxe/rxe_pool.c:407 kref_put include/linux/kref.h:65 [inline] rxe_create_qp+0x32c/0x3b0 drivers/infiniband/sw/rxe/rxe_verbs.c:450 create_qp+0x5ac/0x960 drivers/infiniband/core/verbs.c:1241 ib_create_qp_kernel+0x9d/0x310 drivers/infiniband/core/verbs.c:1352 ib_create_qp include/rdma/ib_verbs.h:3722 [inline] create_mad_qp+0x177/0x2d0 drivers/infiniband/core/mad.c:2910 ib_mad_port_open drivers/infiniband/core/mad.c:2991 [inline] ib_mad_init_device+0xd4d/0x13f0 drivers/infiniband/core/mad.c:3082 add_client_context+0x405/0x5e0 drivers/infiniband/core/device.c:720 enable_device_and_get+0x1cd/0x3b0 drivers/infiniband/core/device.c:1331 ib_register_device drivers/infiniband/core/device.c:1419 [inline] ib_register_device+0x854/0xb50 drivers/infiniband/core/device.c:1365 rxe_register_device+0x2fe/0x3b0 drivers/infiniband/sw/rxe/rxe_verbs.c:1146 rxe_add+0x1331/0x1710 drivers/infiniband/sw/rxe/rxe.c:248 rxe_net_add+0x8c/0xe0 drivers/infiniband/sw/rxe/rxe_net.c:543 rxe_newlink drivers/infiniband/sw/rxe/rxe.c:270 [inline] rxe_newlink+0xb7/0xe0 drivers/infiniband/sw/rxe/rxe.c:251 nldev_newlink+0x30a/0x560 drivers/infiniband/core/nldev.c:1717 rdma_nl_rcv_msg+0x36d/0x690 drivers/infiniband/core/netlink.c:195 rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline] rdma_nl_rcv+0x2ee/0x430 drivers/infiniband/core/netlink.c:259 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7ffbc1ff5ae9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffbbf54a188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007ffbc2109020 RCX: 00007ffbc1ff5ae9 RDX: 0000000000000000 RSI: 0000000020001c80 RDI: 0000000000000004 RBP: 00007ffbc204ff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcd4ea85ef R14: 00007ffbbf54a300 R15: 0000000000022000 Allocated by task 27697: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc mm/kasan/common.c:513 [inline] ____kasan_kmalloc mm/kasan/common.c:472 [inline] __kasan_kmalloc+0xa6/0xd0 mm/kasan/common.c:522 kasan_kmalloc include/linux/kasan.h:269 [inline] kmem_cache_alloc_trace+0x1ea/0x4a0 mm/slab.c:3575 kmalloc include/linux/slab.h:590 [inline] kzalloc include/linux/slab.h:724 [inline] rxe_queue_init+0x99/0x510 drivers/infiniband/sw/rxe/rxe_queue.c:66 rxe_qp_init_req drivers/infiniband/sw/rxe/rxe_qp.c:233 [inline] rxe_qp_from_init+0x844/0x1bf0 drivers/infiniband/sw/rxe/rxe_qp.c:347 rxe_create_qp+0x231/0x3b0 drivers/infiniband/sw/rxe/rxe_verbs.c:442 create_qp+0x5ac/0x960 drivers/infiniband/core/verbs.c:1241 ib_create_qp_kernel+0x9d/0x310 drivers/infiniband/core/verbs.c:1352 ib_create_qp include/rdma/ib_verbs.h:3722 [inline] create_mad_qp+0x177/0x2d0 drivers/infiniband/core/mad.c:2910 ib_mad_port_open drivers/infiniband/core/mad.c:2991 [inline] ib_mad_init_device+0xd4d/0x13f0 drivers/infiniband/core/mad.c:3082 add_client_context+0x405/0x5e0 drivers/infiniband/core/device.c:720 enable_device_and_get+0x1cd/0x3b0 drivers/infiniband/core/device.c:1331 ib_register_device drivers/infiniband/core/device.c:1419 [inline] ib_register_device+0x854/0xb50 drivers/infiniband/core/device.c:1365 rxe_register_device+0x2fe/0x3b0 drivers/infiniband/sw/rxe/rxe_verbs.c:1146 rxe_add+0x1331/0x1710 drivers/infiniband/sw/rxe/rxe.c:248 rxe_net_add+0x8c/0xe0 drivers/infiniband/sw/rxe/rxe_net.c:543 rxe_newlink drivers/infiniband/sw/rxe/rxe.c:270 [inline] rxe_newlink+0xb7/0xe0 drivers/infiniband/sw/rxe/rxe.c:251 nldev_newlink+0x30a/0x560 drivers/infiniband/core/nldev.c:1717 rdma_nl_rcv_msg+0x36d/0x690 drivers/infiniband/core/netlink.c:195 rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline] rdma_nl_rcv+0x2ee/0x430 drivers/infiniband/core/netlink.c:259 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Freed by task 27697: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:46 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:366 [inline] ____kasan_slab_free mm/kasan/common.c:328 [inline] __kasan_slab_free+0xd1/0x110 mm/kasan/common.c:374 kasan_slab_free include/linux/kasan.h:235 [inline] __cache_free mm/slab.c:3445 [inline] kfree+0x10d/0x2c0 mm/slab.c:3802 rxe_qp_from_init+0x161e/0x1bf0 drivers/infiniband/sw/rxe/rxe_qp.c:361 rxe_create_qp+0x231/0x3b0 drivers/infiniband/sw/rxe/rxe_verbs.c:442 create_qp+0x5ac/0x960 drivers/infiniband/core/verbs.c:1241 ib_create_qp_kernel+0x9d/0x310 drivers/infiniband/core/verbs.c:1352 ib_create_qp include/rdma/ib_verbs.h:3722 [inline] create_mad_qp+0x177/0x2d0 drivers/infiniband/core/mad.c:2910 ib_mad_port_open drivers/infiniband/core/mad.c:2991 [inline] ib_mad_init_device+0xd4d/0x13f0 drivers/infiniband/core/mad.c:3082 add_client_context+0x405/0x5e0 drivers/infiniband/core/device.c:720 enable_device_and_get+0x1cd/0x3b0 drivers/infiniband/core/device.c:1331 ib_register_device drivers/infiniband/core/device.c:1419 [inline] ib_register_device+0x854/0xb50 drivers/infiniband/core/device.c:1365 rxe_register_device+0x2fe/0x3b0 drivers/infiniband/sw/rxe/rxe_verbs.c:1146 rxe_add+0x1331/0x1710 drivers/infiniband/sw/rxe/rxe.c:248 rxe_net_add+0x8c/0xe0 drivers/infiniband/sw/rxe/rxe_net.c:543 rxe_newlink drivers/infiniband/sw/rxe/rxe.c:270 [inline] rxe_newlink+0xb7/0xe0 drivers/infiniband/sw/rxe/rxe.c:251 nldev_newlink+0x30a/0x560 drivers/infiniband/core/nldev.c:1717 rdma_nl_rcv_msg+0x36d/0x690 drivers/infiniband/core/netlink.c:195 rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline] rdma_nl_rcv+0x2ee/0x430 drivers/infiniband/core/netlink.c:259 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Last potentially related work creation: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 __kasan_record_aux_stack+0xb5/0xe0 mm/kasan/generic.c:348 __call_rcu kernel/rcu/tree.c:2985 [inline] call_rcu+0xb1/0x740 kernel/rcu/tree.c:3065 __percpu_ref_switch_to_atomic lib/percpu-refcount.c:232 [inline] __percpu_ref_switch_mode+0x398/0x830 lib/percpu-refcount.c:279 percpu_ref_kill_and_confirm+0x8a/0x180 lib/percpu-refcount.c:393 kill_css+0x115/0x370 kernel/cgroup/cgroup.c:5578 cgroup_destroy_locked+0x28c/0x710 kernel/cgroup/cgroup.c:5645 cgroup_rmdir+0x32/0x300 kernel/cgroup/cgroup.c:5686 kernfs_iop_rmdir+0x13c/0x1b0 fs/kernfs/dir.c:1172 vfs_rmdir.part.0+0x10f/0x4b0 fs/namei.c:3968 vfs_rmdir fs/namei.c:3954 [inline] do_rmdir+0x3a6/0x430 fs/namei.c:4030 __do_sys_rmdir fs/namei.c:4049 [inline] __se_sys_rmdir fs/namei.c:4047 [inline] __x64_sys_rmdir+0xc6/0x110 fs/namei.c:4047 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Second to last potentially related work creation: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 __kasan_record_aux_stack+0xb5/0xe0 mm/kasan/generic.c:348 kvfree_call_rcu+0x74/0x990 kernel/rcu/tree.c:3550 sctp_bind_addr_clean+0x135/0x1f0 net/sctp/bind_addr.c:125 sctp_association_free+0x294/0x7d0 net/sctp/associola.c:359 sctp_cmd_delete_tcb net/sctp/sm_sideeffect.c:940 [inline] sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1324 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1195 [inline] sctp_do_sm+0x3665/0x4ed0 net/sctp/sm_sideeffect.c:1166 sctp_assoc_bh_rcv+0x386/0x6c0 net/sctp/associola.c:1054 sctp_inq_push+0x1da/0x270 net/sctp/inqueue.c:80 sctp_backlog_rcv+0x19e/0x5b0 net/sctp/input.c:344 sk_backlog_rcv include/net/sock.h:1030 [inline] __release_sock+0x134/0x3b0 net/core/sock.c:2768 release_sock+0x54/0x1b0 net/core/sock.c:3300 sctp_close+0x43f/0x930 net/sctp/socket.c:1533 inet_release+0x12e/0x280 net/ipv4/af_inet.c:427 inet6_release+0x4c/0x70 net/ipv6/af_inet6.c:479 __sock_release+0xcd/0x280 net/socket.c:649 sock_close+0x18/0x20 net/socket.c:1314 __fput+0x286/0x9f0 fs/file_table.c:280 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:175 [inline] exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae The buggy address belongs to the object at ffff888077beee80 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 16 bytes inside of 64-byte region [ffff888077beee80, ffff888077beeec0) The buggy address belongs to the page: page:ffffea0001defb80 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888077bee080 pfn:0x77bee flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffffea0000687ec8 ffffea0001fe6fc8 ffff888010c40200 raw: ffff888077bee080 ffff888077bee000 000000010000001b 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x242220(__GFP_HIGH|__GFP_ATOMIC|__GFP_NOWARN|__GFP_COMP|__GFP_THISNODE), pid 9229, ts 257976761337, free_ts 257963469787 prep_new_page mm/page_alloc.c:2418 [inline] get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4149 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5369 __alloc_pages_node include/linux/gfp.h:570 [inline] kmem_getpages mm/slab.c:1377 [inline] cache_grow_begin+0x75/0x470 mm/slab.c:2593 cache_alloc_refill+0x27f/0x380 mm/slab.c:2965 ____cache_alloc mm/slab.c:3048 [inline] ____cache_alloc mm/slab.c:3031 [inline] __do_cache_alloc mm/slab.c:3275 [inline] slab_alloc mm/slab.c:3316 [inline] __do_kmalloc mm/slab.c:3700 [inline] __kmalloc+0x3b3/0x4d0 mm/slab.c:3711 kmalloc include/linux/slab.h:595 [inline] ieee802_11_parse_elems_crc+0x14d/0x1060 net/mac80211/util.c:1477 ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2208 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1605 [inline] ieee80211_ibss_rx_queued_mgmt+0xd0e/0x3130 net/mac80211/ibss.c:1639 ieee80211_iface_process_skb net/mac80211/iface.c:1468 [inline] ieee80211_iface_work+0xa65/0xd00 net/mac80211/iface.c:1522 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298 worker_thread+0x658/0x11f0 kernel/workqueue.c:2445 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1338 [inline] free_pcp_prepare+0x374/0x870 mm/page_alloc.c:1389 free_unref_page_prepare mm/page_alloc.c:3309 [inline] free_unref_page+0x19/0x690 mm/page_alloc.c:3388 mm_free_pgd kernel/fork.c:647 [inline] __mmdrop+0xcb/0x3f0 kernel/fork.c:698 mmdrop include/linux/sched/mm.h:49 [inline] __mmput+0x3f1/0x4b0 kernel/fork.c:1123 mmput+0x56/0x60 kernel/fork.c:1134 free_bprm+0x65/0x2e0 fs/exec.c:1481 kernel_execve+0x380/0x460 fs/exec.c:1978 call_usermodehelper_exec_async+0x2e3/0x580 kernel/umh.c:112 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Memory state around the buggy address: ffff888077beed80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc ffff888077beee00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc >ffff888077beee80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ^ ffff888077beef00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff888077beef80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ==================================================================