program: r0 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl80211(&(0x7f0000000080), 0xffffffffffffffff) (async) r1 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000080), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r0, 0x8933, &(0x7f00000000c0)={'wlan1\x00', 0x0}) syz_mount_image$ocfs2(&(0x7f0000004440), &(0x7f0000000040)='./file1\x00', 0x8c0, &(0x7f0000000280)={[{@acl}, {@dir_resv_level={'dir_resv_level', 0x3d, 0x7}}, {@dir_resv_level={'dir_resv_level', 0x3d, 0x3}}, {@resv_level={'resv_level', 0x3d, 0x6}}, {@localflocks}, {@heartbeat_none}, {@coherency_full}, {@noacl}]}, 0x1, 0x4421, 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VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVXYgWMBAAAAAGH+1lH0bQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPArAAD//z8QH1I=") mount(0x0, &(0x7f0000000100)='.\x00', 0x0, 0x1000022, &(0x7f0000000340)='heartbeat=none') (async) mount(0x0, &(0x7f0000000100)='.\x00', 0x0, 0x1000022, &(0x7f0000000340)='heartbeat=none') sendmsg$NL80211_CMD_SET_INTERFACE(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000180)={0x24, r1, 0x5, 0x0, 0x0, {{}, {@val={0x8, 0x3, r2}, @void}}, [@NL80211_ATTR_IFTYPE={0x8, 0x5, 0x2}]}, 0x24}}, 0x0) (async) sendmsg$NL80211_CMD_SET_INTERFACE(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000180)={0x24, r1, 0x5, 0x0, 0x0, {{}, {@val={0x8, 0x3, r2}, @void}}, [@NL80211_ATTR_IFTYPE={0x8, 0x5, 0x2}]}, 0x24}}, 0x0) sendmsg$NL80211_CMD_CONNECT(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000240)={0x30, r1, 0x5, 0x0, 0x0, {{}, {@val={0x8, 0x3, r2}, @void}}, [@NL80211_ATTR_SSID={0xa, 0x34, @default_ap_ssid}, @chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8}]]}, 0x30}}, 0x0) syz_80211_inject_frame(&(0x7f00000002c0)=@device_b, &(0x7f0000000540)=@mgmt_frame=@probe_response={{{}, {}, @device_b, @device_a, @from_mac}, 0x0, @default, 0x1, @val={0x0, 0x6, @default_ap_ssid}, @val={0x1, 0x1, [{0x2, 0x1}]}, @void, @void, @void, @void, @void, @void}, 0x2f) (async) syz_80211_inject_frame(&(0x7f00000002c0)=@device_b, &(0x7f0000000540)=@mgmt_frame=@probe_response={{{}, {}, @device_b, @device_a, @from_mac}, 0x0, @default, 0x1, @val={0x0, 0x6, @default_ap_ssid}, @val={0x1, 0x1, [{0x2, 0x1}]}, @void, @void, @void, @void, @void, @void}, 0x2f) nanosleep(&(0x7f0000000340)={0x0, 0x2faf080}, 0x0) syz_80211_inject_frame(&(0x7f00000003c0)=@device_b, &(0x7f0000000400)=@mgmt_frame=@auth={{{}, {}, @device_b, @device_a, @from_mac, {0x0, 0x1}}, 0x0, 0x2, 0x0, @void}, 0x1e) (async) syz_80211_inject_frame(&(0x7f00000003c0)=@device_b, &(0x7f0000000400)=@mgmt_frame=@auth={{{}, {}, @device_b, @device_a, @from_mac, {0x0, 0x1}}, 0x0, 0x2, 0x0, @void}, 0x1e) syz_80211_inject_frame(&(0x7f00000004c0)=@device_b, &(0x7f0000000500)=@mgmt_frame=@assoc_resp={{{}, {}, @device_b, @device_a, @from_mac, {0x0, 0x2}}, 0x1, 0x0, @default, @val, @void}, 0x20) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket$netlink(0x10, 0x3, 0x0) r5 = syz_open_dev$loop(&(0x7f0000000640), 0x0, 0x22400) ioctl$LOOP_SET_STATUS(r5, 0x4c02, &(0x7f00000006c0)={0x0, {}, 0x0, {}, 0x400, 0x2, 0xa, 0x1d, "9e959f16b6a5e942c126e66c4056a51695284854c382ec6bcfeef4a3637c7dd8a6078ed98e203f04edc609337f4bb8ac274de9d940bba5e51e92bbd4ce85450d", "f625c1076e4c36e0fb7e904d865c2fdc458ec58d040000005a0800", [0x400059, 0x7]}) (async) ioctl$LOOP_SET_STATUS(r5, 0x4c02, &(0x7f00000006c0)={0x0, {}, 0x0, {}, 0x400, 0x2, 0xa, 0x1d, "9e959f16b6a5e942c126e66c4056a51695284854c382ec6bcfeef4a3637c7dd8a6078ed98e203f04edc609337f4bb8ac274de9d940bba5e51e92bbd4ce85450d", "f625c1076e4c36e0fb7e904d865c2fdc458ec58d040000005a0800", [0x400059, 0x7]}) r6 = socket(0x10, 0x2, 0x0) sendmsg$nl_route_sched(r6, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000140)=@newqdisc={0x24, 0x24, 0x0, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, {}, {}, {0x0, 0xe}}}, 0x24}}, 0x0) getsockname$packet(r6, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000001480)=0x14) sendmsg$nl_route_sched(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000540)=@newqdisc={0x2c, 0x24, 0xf0b, 0x0, 0x0, {0x0, 0x0, 0x0, r7, {0x0, 0x4}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_drr={0x8}]}, 0x2c}}, 0x0) sendmsg$nl_route_sched(r4, &(0x7f0000000340)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000580)=@newtfilter={0x30, 0x2c, 0xd2f, 0x0, 0x0, {0x0, 0x0, 0x0, r7, {0x0, 0x8}, {}, {0xc, 0xffff}}, [@filter_kind_options=@f_fw={{0x7}, {0x4}}]}, 0x30}, 0x1, 0x0, 0x0, 0x40800}, 0x4800) ioctl$sock_SIOCGIFINDEX_80211(r6, 0x8933, &(0x7f0000000000)={'wlan0\x00'}) sendmsg$nl_route_sched(r3, &(0x7f00000093c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000014c0)=@deltfilter={0x30, 0x2d, 0x1, 0x0, 0x0, {0x0, 0x0, 0x0, r7, {0x0, 0xffec}, {}, {0x0, 0xffff}}, [@filter_kind_options=@f_fw={{0x7}, {0x4}}]}, 0x30}}, 0x0) r8 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff) (async) r9 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r8, 0x8933, &(0x7f0000000700)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_TRIGGER_SCAN(r8, &(0x7f0000000340)={0x0, 0x0, &(0x7f0000000300)={&(0x7f00000008c0)={0x24, r9, 0x5, 0x0, 0x0, {{}, {@val={0x8, 0x3, r10}, @void}}, [@NL80211_ATTR_SCAN_FLAGS={0x8, 0x9e, 0x8}]}, 0x24}}, 0x0) (async) sendmsg$NL80211_CMD_TRIGGER_SCAN(r8, &(0x7f0000000340)={0x0, 0x0, &(0x7f0000000300)={&(0x7f00000008c0)={0x24, r9, 0x5, 0x0, 0x0, {{}, {@val={0x8, 0x3, r10}, @void}}, [@NL80211_ATTR_SCAN_FLAGS={0x8, 0x9e, 0x8}]}, 0x24}}, 0x0) [ 74.917468][ T5305] Bluetooth: hci0: command tx timeout [ 75.385516][ T5325] loop0: detected capacity change from 0 to 32768 [ 75.395507][ T5325] ======================================================= [ 75.395507][ T5325] WARNING: The mand mount option has been deprecated and [ 75.395507][ T5325] and is ignored by this kernel. Remove the mand [ 75.395507][ T5325] option from the mount to silence this warning. [ 75.395507][ T5325] ======================================================= [ 75.482741][ T5325] JBD2: Ignoring recovery information on journal [ 75.561319][ T5325] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 75.630892][ T5325] mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium [ 75.663270][ T5323] wlan1: authenticate with 08:02:11:00:00:00 (local address=08:02:11:00:00:01) [ 75.671632][ T5323] wlan1: send auth to 08:02:11:00:00:00 (try 1/3) [ 75.689409][ T1039] wlan1: authenticated [ 75.697380][ T1039] wlan1: associate with 08:02:11:00:00:00 (try 1/3) [ 75.704001][ T5325] mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium [ 75.736975][ T5326] loop0: detected capacity change from 32768 to 32766 [ 75.742223][ T5326] [ 75.743405][ T5326] ====================================================== [ 75.746695][ T5326] WARNING: possible circular locking dependency detected [ 75.749870][ T5326] 6.16.0-rc1-syzkaller-00203-g4774cfe3543a #0 Not tainted [ 75.752758][ T5326] ------------------------------------------------------ [ 75.755551][ T5326] syz.0.0/5326 is trying to acquire lock: [ 75.757939][ T5326] ffffffff8f87a3e8 (uevent_sock_mutex){+.+.}-{4:4}, at: kobject_uevent_net_broadcast+0x27e/0x560 [ 75.764666][ T5326] [ 75.764666][ T5326] but task is already holding lock: [ 75.768291][ T5326] ffff888000e71e00 (&q->q_usage_counter(io)#17){++++}-{0:0}, at: loop_set_status+0x227/0xaf0 [ 75.772591][ T5326] [ 75.772591][ T5326] which lock already depends on the new lock. [ 75.772591][ T5326] [ 75.777006][ T5326] [ 75.777006][ T5326] the existing dependency chain (in reverse order) is: [ 75.781042][ T5326] [ 75.781042][ T5326] -> #2 (&q->q_usage_counter(io)#17){++++}-{0:0}: [ 75.785717][ T5326] lock_acquire+0x120/0x360 [ 75.788202][ T5326] blk_alloc_queue+0x538/0x620 [ 75.790534][ T5326] __blk_mq_alloc_disk+0x162/0x340 [ 75.792999][ T5326] loop_add+0x41b/0xad0 [ 75.795206][ T5326] loop_init+0x173/0x230 [ 75.797908][ T5326] do_one_initcall+0x233/0x820 [ 75.800942][ T5326] do_initcall_level+0x137/0x1f0 [ 75.803604][ T5326] do_initcalls+0x69/0xd0 [ 75.805739][ T5326] kernel_init_freeable+0x3d9/0x570 [ 75.808240][ T5326] kernel_init+0x1d/0x1d0 [ 75.810477][ T5326] ret_from_fork+0x3fc/0x770 [ 75.813105][ T5326] ret_from_fork_asm+0x1a/0x30 [ 75.815866][ T5326] [ 75.815866][ T5326] -> #1 (fs_reclaim){+.+.}-{0:0}: [ 75.819658][ T5326] lock_acquire+0x120/0x360 [ 75.821910][ T5326] fs_reclaim_acquire+0x72/0x100 [ 75.824358][ T5326] kmem_cache_alloc_node_noprof+0x47/0x3c0 [ 75.827126][ T5326] __alloc_skb+0x112/0x2d0 [ 75.829290][ T5326] alloc_uevent_skb+0x7d/0x230 [ 75.831945][ T5326] kobject_uevent_net_broadcast+0x2fa/0x560 [ 75.836167][ T5326] kobject_uevent_env+0x55b/0x8c0 [ 75.838651][ T5326] kobject_synth_uevent+0x527/0xb00 [ 75.841211][ T5326] bus_uevent_store+0x115/0x170 [ 75.843422][ T5326] kernfs_fop_write_iter+0x378/0x4f0 [ 75.846116][ T5326] vfs_write+0x548/0xa90 [ 75.848325][ T5326] ksys_write+0x145/0x250 [ 75.850469][ T5326] do_syscall_64+0xfa/0x3b0 [ 75.852680][ T5326] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.855525][ T5326] [ 75.855525][ T5326] -> #0 (uevent_sock_mutex){+.+.}-{4:4}: [ 75.864089][ T5326] validate_chain+0xb9b/0x2140 [ 75.866265][ T5326] __lock_acquire+0xab9/0xd20 [ 75.868564][ T5326] lock_acquire+0x120/0x360 [ 75.870748][ T5326] __mutex_lock+0x182/0xe80 [ 75.872954][ T5326] kobject_uevent_net_broadcast+0x27e/0x560 [ 75.875731][ T5326] kobject_uevent_env+0x55b/0x8c0 [ 75.878259][ T5326] set_capacity_and_notify+0x26d/0x2d0 [ 75.881470][ T5326] loop_set_status+0x45b/0xaf0 [ 75.884187][ T5326] lo_ioctl+0xa5e/0x2410 [ 75.886247][ T5326] blkdev_ioctl+0x5a8/0x6d0 [ 75.888456][ T5326] __se_sys_ioctl+0xf9/0x170 [ 75.890671][ T5326] do_syscall_64+0xfa/0x3b0 [ 75.892943][ T5326] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.895843][ T5326] [ 75.895843][ T5326] other info that might help us debug this: [ 75.895843][ T5326] [ 75.902099][ T5326] Chain exists of: [ 75.902099][ T5326] uevent_sock_mutex --> fs_reclaim --> &q->q_usage_counter(io)#17 [ 75.902099][ T5326] [ 75.907784][ T5326] Possible unsafe locking scenario: [ 75.907784][ T5326] [ 75.910993][ T5326] CPU0 CPU1 [ 75.913333][ T5326] ---- ---- [ 75.915734][ T5326] lock(&q->q_usage_counter(io)#17); [ 75.918393][ T5326] lock(fs_reclaim); [ 75.921788][ T5326] lock(&q->q_usage_counter(io)#17); [ 75.925468][ T5326] lock(uevent_sock_mutex); [ 75.927510][ T5326] [ 75.927510][ T5326] *** DEADLOCK *** [ 75.927510][ T5326] [ 75.930877][ T5326] 3 locks held by syz.0.0/5326: [ 75.932930][ T5326] #0: ffff888000ca8400 (&lo->lo_mutex){+.+.}-{4:4}, at: loop_set_status+0x2c/0xaf0 [ 75.937084][ T5326] #1: ffff888000e71e00 (&q->q_usage_counter(io)#17){++++}-{0:0}, at: loop_set_status+0x227/0xaf0 [ 75.942507][ T5326] #2: ffff888000e71e38 (&q->q_usage_counter(queue)#20){+.+.}-{0:0}, at: loop_set_status+0x227/0xaf0 [ 75.947317][ T5326] [ 75.947317][ T5326] stack backtrace: [ 75.949739][ T5326] CPU: 0 UID: 0 PID: 5326 Comm: syz.0.0 Not tainted 6.16.0-rc1-syzkaller-00203-g4774cfe3543a #0 PREEMPT(full) [ 75.949755][ T5326] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 75.949761][ T5326] Call Trace: [ 75.949767][ T5326] [ 75.949772][ T5326] dump_stack_lvl+0x189/0x250 [ 75.949794][ T5326] ? __pfx_dump_stack_lvl+0x10/0x10 [ 75.949809][ T5326] ? __pfx__printk+0x10/0x10 [ 75.949821][ T5326] ? print_lock_name+0xde/0x100 [ 75.949831][ T5326] print_circular_bug+0x2ee/0x310 [ 75.949843][ T5326] check_noncircular+0x134/0x160 [ 75.949855][ T5326] validate_chain+0xb9b/0x2140 [ 75.949871][ T5326] __lock_acquire+0xab9/0xd20 [ 75.949885][ T5326] ? kobject_uevent_net_broadcast+0x27e/0x560 [ 75.949894][ T5326] lock_acquire+0x120/0x360 [ 75.949906][ T5326] ? kobject_uevent_net_broadcast+0x27e/0x560 [ 75.949919][ T5326] __mutex_lock+0x182/0xe80 [ 75.949929][ T5326] ? kobject_uevent_net_broadcast+0x27e/0x560 [ 75.949941][ T5326] ? vsnprintf+0xe11/0xf00 [ 75.949952][ T5326] ? kobject_uevent_net_broadcast+0x27e/0x560 [ 75.949964][ T5326] ? __pfx___mutex_lock+0x10/0x10 [ 75.949972][ T5326] ? add_uevent_var+0x278/0x450 [ 75.949984][ T5326] ? kobject_uevent_env+0x50a/0x8c0 [ 75.949995][ T5326] ? __pfx_add_uevent_var+0x10/0x10 [ 75.950006][ T5326] kobject_uevent_net_broadcast+0x27e/0x560 [ 75.950020][ T5326] kobject_uevent_env+0x55b/0x8c0 [ 75.950032][ T5326] set_capacity_and_notify+0x26d/0x2d0 [ 75.950045][ T5326] ? __pfx_set_capacity_and_notify+0x10/0x10 [ 75.950056][ T5326] ? loop_set_status_from_info+0x185/0x250 [ 75.950066][ T5326] loop_set_status+0x45b/0xaf0 [ 75.950076][ T5326] lo_ioctl+0xa5e/0x2410 [ 75.950086][ T5326] ? stack_trace_save+0x9c/0xe0 [ 75.950094][ T5326] ? __pfx_lo_ioctl+0x10/0x10 [ 75.950103][ T5326] ? kasan_save_track+0x4f/0x80 [ 75.950114][ T5326] ? kasan_save_track+0x3e/0x80 [ 75.950125][ T5326] ? kasan_save_free_info+0x46/0x50 [ 75.950133][ T5326] ? __kasan_slab_free+0x62/0x70 [ 75.950139][ T5326] ? kfree+0x18e/0x440 [ 75.950150][ T5326] ? tomoyo_check_open_permission+0x2c2/0x3b0 [ 75.950158][ T5326] ? do_dentry_open+0x35e/0x1970 [ 75.950173][ T5326] ? __lock_acquire+0xab9/0xd20 [ 75.950186][ T5326] ? __lock_acquire+0xab9/0xd20 [ 75.950201][ T5326] ? __lock_acquire+0xab9/0xd20 [ 75.950215][ T5326] ? __lock_acquire+0xab9/0xd20 [ 75.950234][ T5326] ? is_bpf_text_address+0x26/0x2b0 [ 75.950251][ T5326] ? is_bpf_text_address+0x292/0x2b0 [ 75.950264][ T5326] ? is_bpf_text_address+0x26/0x2b0 [ 75.950279][ T5326] ? kernel_text_address+0xa5/0xe0 [ 75.950293][ T5326] ? __kernel_text_address+0xd/0x40 [ 75.950306][ T5326] ? unwind_get_return_address+0x4d/0x90 [ 75.950322][ T5326] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 75.950332][ T5326] ? arch_stack_walk+0xfc/0x150 [ 75.950344][ T5326] ? stack_trace_save+0x9c/0xe0 [ 75.950356][ T5326] ? kasan_save_track+0x4f/0x80 [ 75.950370][ T5326] ? kasan_save_track+0x3e/0x80 [ 75.950383][ T5326] ? kasan_save_free_info+0x46/0x50 [ 75.950396][ T5326] ? __kasan_slab_free+0x62/0x70 [ 75.950404][ T5326] ? kfree+0x18e/0x440 [ 75.950418][ T5326] ? tomoyo_path_number_perm+0x47a/0x5a0 [ 75.950429][ T5326] ? security_file_ioctl+0xcb/0x2d0 [ 75.950436][ T5326] ? __se_sys_ioctl+0x47/0x170 [ 75.950446][ T5326] ? do_syscall_64+0xfa/0x3b0 [ 75.950456][ T5326] ? do_vfs_ioctl+0xf37/0x1990 [ 75.950466][ T5326] ? __pfx_do_vfs_ioctl+0x10/0x10 [ 75.950477][ T5326] ? kasan_quarantine_put+0xdd/0x220 [ 75.950492][ T5326] ? blkdev_common_ioctl+0xfc3/0x2450 [ 75.950506][ T5326] ? tomoyo_path_number_perm+0x1bc/0x5a0 [ 75.950517][ T5326] ? tomoyo_path_number_perm+0x1bc/0x5a0 [ 75.950529][ T5326] ? __pfx_blkdev_common_ioctl+0x10/0x10 [ 75.950541][ T5326] ? tomoyo_path_number_perm+0x4e2/0x5a0 [ 75.950552][ T5326] ? tomoyo_path_number_perm+0x1bc/0x5a0 [ 75.950563][ T5326] ? __pfx_tomoyo_path_number_perm+0x10/0x10 [ 75.950579][ T5326] ? __lock_acquire+0xab9/0xd20 [ 75.950596][ T5326] ? __pfx_lo_ioctl+0x10/0x10 [ 75.950608][ T5326] blkdev_ioctl+0x5a8/0x6d0 [ 75.950621][ T5326] ? __pfx_blkdev_ioctl+0x10/0x10 [ 75.950631][ T5326] ? __fget_files+0x2a/0x420 [ 75.950639][ T5326] ? bpf_lsm_file_ioctl+0x9/0x20 [ 75.950658][ T5326] ? __pfx_blkdev_ioctl+0x10/0x10 [ 75.950671][ T5326] __se_sys_ioctl+0xf9/0x170 [ 75.950685][ T5326] do_syscall_64+0xfa/0x3b0 [ 75.950694][ T5326] ? lockdep_hardirqs_on+0x9c/0x150 [ 75.950709][ T5326] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.950720][ T5326] ? clear_bhb_loop+0x60/0xb0 [ 75.950732][ T5326] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.950742][ T5326] RIP: 0033:0x7fb87a58e929 [ 75.951764][ T5326] 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 a8 ff ff ff f7 d8 64 89 01 48 [ 75.951779][ T5326] RSP: 002b:00007fb87b463038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 75.951792][ T5326] RAX: ffffffffffffffda RBX: 00007fb87a7b6080 RCX: 00007fb87a58e929 [ 75.951800][ T5326] RDX: 00002000000006c0 RSI: 0000000000004c02 RDI: 0000000000000008 [ 75.951806][ T5326] RBP: 00007fb87a610b39 R08: 0000000000000000 R09: 0000000000000000 [ 75.951813][ T5326] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.951819][ T5326] R13: 0000000000000000 R14: 00007fb87a7b6080 R15: 00007fffccb17e98 [ 75.951830][ T5326]