program: syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) syz_mount_image$hfsplus(&(0x7f0000000040), &(0x7f0000000080)='./file1\x00', 0x400, &(0x7f0000000140)=ANY=[], 0x1, 0x694, &(0x7f0000001100)="$eJzs3U1sHGf9B/DvbnbX3vz/Sp02SQOqRNRIBRGROLGSYi4NCKFIVKgqB8TRSpzGyiatHBc5EYLwfuDCoXeKRG5cQOIeVM7AqVcfKyFx6SmAxKKZnbXXr9l1Yq8tPp9odp5nnpd5nt/M7OzOKnKA/1nXzqXxOLVcO/fmcpFfeTTTWXk0c6efTjKRpJ40eqvU7ia1j5Kr6S35TLGx6q623X4+WJh9++NPVz7p5RrVUtav79Rukyv1LTY+rJacSXKkWj+Ddf1d39Bfa+TuaqszLAJ2th84GLdmku463z21VvJUw1+3wIFVK++bm6/5qeRoksnqc0Dvrti7Zx9qD8c9AAAAANgHL/yy/Ap/bNzjAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgMOk9/f/i1W51PvpM6n1//5/q9qWKn2oPR73AAAAAAAAAABgdN/8/w0bPvckT7KcY/18t1b+5v9qmTlRvv5f3s+9zGcx57OcuSxlKYu5mGSqLG+Wr63luaWlxYtDtLy02jIDLS8NOYP27icPAAAAAAAAAIdFY/QmP861td//AQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADgIKglR3qrcjnRT0+l3kgymaRV1HuY/LWfPpB+/afBXPff3dKmao/3c0wAAAAwJi88yZMs51g/362V3/lPld/7J/N+7mYpC1lKJ/O5UT4L6H3rr688mumsPJq5Uyyb+/3qP0YaRtljes8ett7z6bJGOzezUG45n+t5N53cSL1sWTjdH8/W4/pRMabaG5UhR3ajWhcz/1WaI81qN2pD15wqI1KMqBeR6aptEY3jO0dixKPT31M/9hdTX33yc+J5xny5t3r9t711MZ+fjxSTvbYxEpcGzr5TK6ntEInk83/83Xdude7enrh579zBmdIIJgaeoG2MxMxAJF7e+ZxIM1Ukbh3WSAyaLiNxcjV/Ld/It3MuZ/JWFrOQ72UuS5nPmXw9czmSuep8Ll6ndo7U1XW5t542klZ5XJrVu+jwY1rKXF4t2x7LQr6Vd3Mj87lS/ruUi3m96jGrR/jkEFd9fbR32rNfGHiY/Isk7eHa7YNiYMdX706DZ/10eR0cX7dl7Tp48fnfjxqfrRLFPn4ycETGb2MkLg5E4qWdI/Gb8m3lXufu7cVbc+8Nub/XqnVxHf3sQN0livPlxeJglbn1Z0dR9tLGsslevFrVLy69svV33KLs5GrZ9lfq5VzObFn71JY9XSrLXt6ybKYsOz1Qtu7z1tXe5y0ADryjXzzaav+9/Zf2h+2ftm+135z82sSXJ15ppfnn5lca00deq79S+0M+zA/Wvv8DAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAC7d+/+g9tznc784oZEt9v94TZFe5hoJ+lvSZ7Wqpmn19mbRCtJmWj0E6P1MzFU5dba0Xnj988y5uaorZLnEqhGdZLdf3D7n91ud98P0xaJ5g7n/FqiW9lU1B2q+dgS/+o+vw7H/MYE7LkLS3feu3Dv/oMvLdyZe2f+nfm7s5cvz07PXr7ytws3Fzrz073XcY8S2AtrN/1xjwQAAAAAAAAAAAAY1n78t4Rtdv2ffZ4qAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAcEhdOzdRpc5PF68rj2Y6xdJPr1Ysq9WT1L6f1D5Krqa3ZGqgu9p2+/lgYfbtjz9d+aSXa1RLWb++rl1zN7N4WC05k+RItR40+Qz9Xa/WuxpZqbY6wyJgZ/uBg3H7bwAAAP//2wMQAg==") r0 = creat(&(0x7f0000000100)='./file1\x00', 0x0) r1 = socket$inet(0x2, 0x4000000000000001, 0x0) bind$inet(r1, &(0x7f0000000080)={0x2, 0x4e23, @multicast1}, 0x10) sendto$inet(r1, 0x0, 0x0, 0x200007fd, &(0x7f0000e68000)={0x2, 0x4e23, @local}, 0x10) r2 = socket$inet_tcp(0x2, 0x1, 0x0) dup3(r1, r2, 0x0) sendmmsg$unix(r2, &(0x7f0000002780)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f0000002380)=ANY=[@ANYBLOB="1000000000f3ffff0600000001000000"], 0x10}}, {{&(0x7f00000024c0)=@abs={0x0, 0x0, 0x4e24}, 0x6e, 0x0, 0x0, 0x0, 0x0, 0x20048040}}], 0x2, 0x20004811) io_setup(0x202, &(0x7f0000000200)=0x0) io_submit(r3, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0xe7030000, 0x0, 0x1, 0x0, r0, &(0x7f0000000000), 0x70000}]) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$ETHTOOL_MSG_COALESCE_SET(r4, &(0x7f0000000540)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="010000010000000000001000000018000180140002006e657464657673696d3000000000000005000d"], 0x34}, 0x1, 0x0, 0x0, 0x880}, 0x0) r6 = socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NL80211_CMD_SET_PMK(r6, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES16=r7, @ANYBLOB="100025bd7000fedbdf257b0000000c009900070000002e0000001400020128eeeac91de5ba2d61ba9b74733fe7821400fe00686a90e67d457ceea948d25cf58141dc0a000600080211000001000014000201e8cff6103ff078c9fc05eb39e0d567aa1400fe00360f000000130095e42f766304fc8a221400020166faabc93f207da8c174eec4cb4c43a8"], 0x90}, 0x1, 0x0, 0x0, 0x4000000}, 0x40) [ 105.191780][ T1227] cfg80211: failed to load regulatory.db [ 105.211366][ T5302] Bluetooth: hci0: command tx timeout [ 105.426802][ T5325] loop0: detected capacity change from 0 to 1024 [ 105.502814][ T5325] [ 105.504028][ T5325] ============================================ [ 105.506931][ T5325] WARNING: possible recursive locking detected [ 105.509815][ T5325] syzkaller #0 Not tainted [ 105.512188][ T5325] -------------------------------------------- [ 105.515592][ T5325] syz.0.0/5325 is trying to acquire lock: [ 105.518663][ T5325] ffff888038038e88 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x215/0x1d70 [ 105.523718][ T5325] [ 105.523718][ T5325] but task is already holding lock: [ 105.526812][ T5325] ffff8880429ca2c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x215/0x1d70 [ 105.532579][ T5325] [ 105.532579][ T5325] other info that might help us debug this: [ 105.536032][ T5325] Possible unsafe locking scenario: [ 105.536032][ T5325] [ 105.539476][ T5325] CPU0 [ 105.541118][ T5325] ---- [ 105.542782][ T5325] lock(&HFSPLUS_I(inode)->extents_lock); [ 105.545567][ T5325] lock(&HFSPLUS_I(inode)->extents_lock); [ 105.549240][ T5325] [ 105.549240][ T5325] *** DEADLOCK *** [ 105.549240][ T5325] [ 105.553680][ T5325] May be due to missing lock nesting notation [ 105.553680][ T5325] [ 105.557388][ T5325] 3 locks held by syz.0.0/5325: [ 105.559780][ T5325] #0: ffff8880429ca4b8 (&sb->s_type->i_mutex_key#25){+.+.}-{4:4}, at: generic_file_write_iter+0x11e/0x680 [ 105.565349][ T5325] #1: ffff8880429ca2c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x215/0x1d70 [ 105.572971][ T5325] #2: ffff88801f5b20b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x168/0x2d0 [ 105.578253][ T5325] [ 105.578253][ T5325] stack backtrace: [ 105.581134][ T5325] CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 105.581156][ T5325] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 105.581196][ T5325] Call Trace: [ 105.581206][ T5325] [ 105.581214][ T5325] dump_stack_lvl+0xe8/0x150 [ 105.581244][ T5325] print_deadlock_bug+0x279/0x290 [ 105.581267][ T5325] __lock_acquire+0x253f/0x2cf0 [ 105.581289][ T5325] ? unwind_next_frame+0xa5/0x23c0 [ 105.581308][ T5325] ? __bfs+0x153/0x290 [ 105.581317][ T5325] ? __pfx_hlock_conflict+0x10/0x10 [ 105.581331][ T5325] lock_acquire+0xf0/0x2e0 [ 105.581339][ T5325] ? hfsplus_file_extend+0x215/0x1d70 [ 105.581356][ T5325] __mutex_lock+0x19f/0x1300 [ 105.581439][ T5325] ? hfsplus_file_extend+0x215/0x1d70 [ 105.581461][ T5325] ? __bfs+0x153/0x290 [ 105.581480][ T5325] ? hfsplus_file_extend+0x215/0x1d70 [ 105.581494][ T5325] ? __pfx___mutex_lock+0x10/0x10 [ 105.581509][ T5325] ? lockdep_unlock+0x5d/0xd0 [ 105.581518][ T5325] ? __lock_acquire+0x146e/0x2cf0 [ 105.581528][ T5325] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 105.581541][ T5325] hfsplus_file_extend+0x215/0x1d70 [ 105.581559][ T5325] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 105.581574][ T5325] ? __pfx___mutex_trylock_common+0x10/0x10 [ 105.581592][ T5325] ? rcu_is_watching+0x15/0xb0 [ 105.581621][ T5325] ? trace_contention_end+0x3d/0x150 [ 105.581643][ T5325] ? __asan_memset+0x22/0x50 [ 105.581663][ T5325] ? hfsplus_brec_find+0x19d/0x520 [ 105.581681][ T5325] hfsplus_bmap_reserve+0x125/0x510 [ 105.581696][ T5325] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 105.581712][ T5325] __hfsplus_ext_cache_extent+0x89/0xe30 [ 105.581730][ T5325] hfsplus_file_extend+0x4af/0x1d70 [ 105.581747][ T5325] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 105.581764][ T5325] ? clean_bdev_aliases+0x62e/0x750 [ 105.581779][ T5325] ? __pfx_clean_bdev_aliases+0x10/0x10 [ 105.581791][ T5325] hfsplus_get_block+0x42c/0x1670 [ 105.581808][ T5325] ? __pfx_hfsplus_get_block+0x10/0x10 [ 105.581821][ T5325] ? do_raw_spin_unlock+0x4d/0x210 [ 105.581832][ T5325] ? _raw_spin_unlock+0x28/0x50 [ 105.581846][ T5325] __block_write_begin_int+0x6c6/0x1910 [ 105.581859][ T5325] ? __pfx_hfsplus_get_block+0x10/0x10 [ 105.581874][ T5325] ? __pfx___block_write_begin_int+0x10/0x10 [ 105.581886][ T5325] cont_write_begin+0x737/0xae0 [ 105.581898][ T5325] ? irqentry_exit+0x59e/0x620 [ 105.581997][ T5325] ? __pfx_cont_write_begin+0x10/0x10 [ 105.582028][ T5325] hfsplus_write_begin+0x66/0xb0 [ 105.582048][ T5325] ? __pfx_hfsplus_get_block+0x10/0x10 [ 105.582068][ T5325] generic_perform_write+0x2e2/0x8f0 [ 105.582091][ T5325] ? __pfx_generic_perform_write+0x10/0x10 [ 105.582102][ T5325] ? file_update_time_flags+0x219/0x4a0 [ 105.582120][ T5325] ? __generic_file_write_iter+0xf9/0x230 [ 105.582130][ T5325] ? generic_file_write_iter+0x136/0x680 [ 105.582145][ T5325] generic_file_write_iter+0x14a/0x680 [ 105.582156][ T5325] ? __pfx_generic_file_write_iter+0x10/0x10 [ 105.582168][ T5325] ? do_raw_spin_lock+0x12b/0x2f0 [ 105.582180][ T5325] ? __lock_acquire+0x6b5/0x2cf0 [ 105.582195][ T5325] ? lockdep_hardirqs_on+0x7a/0x110 [ 105.582226][ T5325] ? kasan_save_track+0x4f/0x80 [ 105.582263][ T5325] ? aio_write+0x547/0x870 [ 105.582281][ T5325] aio_write+0x5cd/0x870 [ 105.582299][ T5325] ? __pfx_aio_write+0x10/0x10 [ 105.582327][ T5325] io_submit_one+0x7bb/0x14c0 [ 105.582343][ T5325] ? irqentry_exit+0x59e/0x620 [ 105.582370][ T5325] ? trace_irq_disable+0x3b/0x150 [ 105.582403][ T5325] ? __pfx_io_submit_one+0x10/0x10 [ 105.582425][ T5325] ? __might_fault+0xaf/0x130 [ 105.582455][ T5325] __se_sys_io_submit+0x195/0x340 [ 105.582484][ T5325] ? __pfx___se_sys_io_submit+0x10/0x10 [ 105.582516][ T5325] do_syscall_64+0x14d/0xf80 [ 105.582533][ T5325] ? trace_irq_disable+0x3b/0x150 [ 105.582549][ T5325] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 105.582563][ T5325] ? clear_bhb_loop+0x40/0x90 [ 105.582575][ T5325] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 105.582590][ T5325] RIP: 0033:0x7ffa9c99c799 [ 105.582606][ T5325] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 [ 105.582616][ T5325] RSP: 002b:00007ffa9d817fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 105.582631][ T5325] RAX: ffffffffffffffda RBX: 00007ffa9cc15fa0 RCX: 00007ffa9c99c799 [ 105.582644][ T5325] RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007ffa9d7ce000 [ 105.582654][ T5325] RBP: 00007ffa9ca32bd9 R08: 0000000000000000 R09: 0000000000000000 [ 105.582662][ T5325] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 105.582671][ T5325] R13: 00007ffa9cc16038 R14: 00007ffa9cc15fa0 R15: 00007ffdf6075d08 [ 105.582709][ T5325]