IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 8436 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:525 [inline] WARNING: CPU: 0 PID: 8436 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:523 [inline] WARNING: CPU: 0 PID: 8436 at include/linux/fs.h:525 hugetlb_split+0x320/0xc50 mm/hugetlb.c:3716 Modules linked in: CPU: 0 PID: 8436 Comm: syz-executor.4 Not tainted 5.10.239 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:525 [inline] RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:523 [inline] RIP: 0010:hugetlb_split+0x320/0xc50 mm/hugetlb.c:3716 Code: 00 00 31 f6 48 81 c7 e0 00 00 00 e8 4a cb 7c 02 31 ff 41 89 c6 89 c6 e8 3e d9 d5 ff 45 85 f6 0f 85 5e fe ff ff e8 e0 df d5 ff <0f> 0b e9 52 fe ff ff e8 d4 df d5 ff 48 8d 43 50 48 89 c2 48 89 44 RSP: 0018:ffff88804e99f9a8 EFLAGS: 00010212 RAX: 000000000000017a RBX: ffff888039933300 RCX: ffffc9000f656000 RDX: 0000000000040000 RSI: ffffffff816af0e0 RDI: 0000000000000005 RBP: 0000000020400000 R08: 0000000000000000 R09: ffff88801763c6bf R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff11009d33f3e R13: ffffffff856799bc R14: 0000000000000000 R15: 0000000000000001 FS: 00007fcbf5a5b700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcbf85f9018 CR3: 000000004a33e000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 000000000ddd062a Call Trace: __vma_adjust+0xbe8/0x2510 mm/mmap.c:841 vma_adjust include/linux/mm.h:2537 [inline] __split_vma+0x41a/0x4e0 mm/mmap.c:2778 __do_munmap+0xfae/0x1260 mm/mmap.c:2876 do_munmap mm/mmap.c:2930 [inline] munmap_vma_range mm/mmap.c:599 [inline] __mmap_region mm/mmap.c:1763 [inline] mmap_region+0x7c8/0x1500 mm/mmap.c:2953 do_mmap+0xcdb/0x11e0 mm/mmap.c:1590 vm_mmap_pgoff+0x198/0x1f0 mm/util.c:539 ksys_mmap_pgoff+0xde/0x560 mm/mmap.c:1641 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fcbf84e5b19 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:00007fcbf5a5b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fcbf85f8f60 RCX: 00007fcbf84e5b19 RDX: 0000000000000000 RSI: 0000000000400000 RDI: 0000000020000000 RBP: 00007fcbf853ff6d R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000002132 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffb47c480f R14: 00007fcbf5a5b300 R15: 0000000000022000 irq event stamp: 1049 hardirqs last enabled at (1057): [] console_unlock+0x92d/0xb40 kernel/printk/printk.c:2567 hardirqs last disabled at (1066): [] console_unlock+0x839/0xb40 kernel/printk/printk.c:2482 softirqs last enabled at (774): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (697): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace 6a7955f3b0d5890d ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 8436 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:525 [inline] WARNING: CPU: 0 PID: 8436 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:523 [inline] WARNING: CPU: 0 PID: 8436 at include/linux/fs.h:525 hugetlb_split+0x320/0xc50 mm/hugetlb.c:3716 Modules linked in: CPU: 0 PID: 8436 Comm: syz-executor.4 Tainted: G W 5.10.239 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:525 [inline] RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:523 [inline] RIP: 0010:hugetlb_split+0x320/0xc50 mm/hugetlb.c:3716 Code: 00 00 31 f6 48 81 c7 e0 00 00 00 e8 4a cb 7c 02 31 ff 41 89 c6 89 c6 e8 3e d9 d5 ff 45 85 f6 0f 85 5e fe ff ff e8 e0 df d5 ff <0f> 0b e9 52 fe ff ff e8 d4 df d5 ff 48 8d 43 50 48 89 c2 48 89 44 RSP: 0018:ffff88804e99f9a8 EFLAGS: 00010216 RAX: 0000000000019437 RBX: ffff888039933300 RCX: ffffc9000f656000 RDX: 0000000000040000 RSI: ffffffff816af0e0 RDI: 0000000000000005 RBP: 0000000020800000 R08: 0000000000000000 R09: ffff88801763c6bf R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff11009d33f3e R13: ffffffff856799bc R14: 0000000000000000 R15: 0000000000000001 FS: 00007fcbf5a5b700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcbf85f9018 CR3: 000000004a33e000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 000000000ddd062a Call Trace: __vma_adjust+0xbf3/0x2510 mm/mmap.c:842 vma_adjust include/linux/mm.h:2537 [inline] __split_vma+0x41a/0x4e0 mm/mmap.c:2778 __do_munmap+0xfae/0x1260 mm/mmap.c:2876 do_munmap mm/mmap.c:2930 [inline] munmap_vma_range mm/mmap.c:599 [inline] __mmap_region mm/mmap.c:1763 [inline] mmap_region+0x7c8/0x1500 mm/mmap.c:2953 do_mmap+0xcdb/0x11e0 mm/mmap.c:1590 vm_mmap_pgoff+0x198/0x1f0 mm/util.c:539 ksys_mmap_pgoff+0xde/0x560 mm/mmap.c:1641 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fcbf84e5b19 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:00007fcbf5a5b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fcbf85f8f60 RCX: 00007fcbf84e5b19 RDX: 0000000000000000 RSI: 0000000000400000 RDI: 0000000020000000 RBP: 00007fcbf853ff6d R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000002132 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffb47c480f R14: 00007fcbf5a5b300 R15: 0000000000022000 irq event stamp: 1569 hardirqs last enabled at (1577): [] console_unlock+0x92d/0xb40 kernel/printk/printk.c:2567 hardirqs last disabled at (1586): [] console_unlock+0x839/0xb40 kernel/printk/printk.c:2482 softirqs last enabled at (774): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (697): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace 6a7955f3b0d5890e ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 8436 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:525 [inline] WARNING: CPU: 0 PID: 8436 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:523 [inline] WARNING: CPU: 0 PID: 8436 at include/linux/fs.h:525 hugetlb_split+0x320/0xc50 mm/hugetlb.c:3716 Modules linked in: CPU: 0 PID: 8436 Comm: syz-executor.4 Tainted: G W 5.10.239 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:525 [inline] RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:523 [inline] RIP: 0010:hugetlb_split+0x320/0xc50 mm/hugetlb.c:3716 Code: 00 00 31 f6 48 81 c7 e0 00 00 00 e8 4a cb 7c 02 31 ff 41 89 c6 89 c6 e8 3e d9 d5 ff 45 85 f6 0f 85 5e fe ff ff e8 e0 df d5 ff <0f> 0b e9 52 fe ff ff e8 d4 df d5 ff 48 8d 43 50 48 89 c2 48 89 44 RSP: 0018:ffff88804e99f9a8 EFLAGS: 00010216 RAX: 0000000000000164 RBX: ffff88804a7df600 RCX: ffffc9000f656000 RDX: 0000000000040000 RSI: ffffffff816af0e0 RDI: 0000000000000005 RBP: 0000000020400000 R08: 0000000000000000 R09: ffff88801763c6bf R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff11009d33f3e R13: ffffffff856799bc R14: 0000000000000000 R15: 0000000000000001 FS: 00007fcbf5a5b700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f69ecb30c08 CR3: 000000004a33e000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 000000000ddd062a Call Trace: __vma_adjust+0xbe8/0x2510 mm/mmap.c:841 vma_adjust include/linux/mm.h:2537 [inline] __split_vma+0x41a/0x4e0 mm/mmap.c:2778 __do_munmap+0xfae/0x1260 mm/mmap.c:2876 do_munmap mm/mmap.c:2930 [inline] munmap_vma_range mm/mmap.c:599 [inline] __mmap_region mm/mmap.c:1763 [inline] mmap_region+0x7c8/0x1500 mm/mmap.c:2953 do_mmap+0xcdb/0x11e0 mm/mmap.c:1590 vm_mmap_pgoff+0x198/0x1f0 mm/util.c:539 ksys_mmap_pgoff+0xde/0x560 mm/mmap.c:1641 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fcbf84e5b19 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:00007fcbf5a5b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fcbf85f8f60 RCX: 00007fcbf84e5b19 RDX: 0000000000000000 RSI: 0000000000400000 RDI: 0000000020000000 RBP: 00007fcbf853ff6d R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000002132 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffb47c480f R14: 00007fcbf5a5b300 R15: 0000000000022000 irq event stamp: 2871 hardirqs last enabled at (2881): [] console_unlock+0x92d/0xb40 kernel/printk/printk.c:2567 hardirqs last disabled at (2892): [] console_unlock+0x839/0xb40 kernel/printk/printk.c:2482 softirqs last enabled at (2568): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (2915): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace 6a7955f3b0d5890f ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 8436 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:525 [inline] WARNING: CPU: 0 PID: 8436 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:523 [inline] WARNING: CPU: 0 PID: 8436 at include/linux/fs.h:525 hugetlb_split+0x320/0xc50 mm/hugetlb.c:3716 Modules linked in: CPU: 0 PID: 8436 Comm: syz-executor.4 Tainted: G W 5.10.239 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:525 [inline] RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:523 [inline] RIP: 0010:hugetlb_split+0x320/0xc50 mm/hugetlb.c:3716 Code: 00 00 31 f6 48 81 c7 e0 00 00 00 e8 4a cb 7c 02 31 ff 41 89 c6 89 c6 e8 3e d9 d5 ff 45 85 f6 0f 85 5e fe ff ff e8 e0 df d5 ff <0f> 0b e9 52 fe ff ff e8 d4 df d5 ff 48 8d 43 50 48 89 c2 48 89 44 RSP: 0018:ffff88804e99f9a8 EFLAGS: 00010216 RAX: 0000000000019bd2 RBX: ffff88804a7df600 RCX: ffffc9000f656000 RDX: 0000000000040000 RSI: ffffffff816af0e0 RDI: 0000000000000005 RBP: 0000000020800000 R08: 0000000000000000 R09: ffff88801763c6bf R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff11009d33f3e R13: ffffffff856799bc R14: 0000000000000000 R15: 0000000000000003 FS: 00007fcbf5a5b700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f69ecb30c08 CR3: 000000004a33e000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 000000000ddd062a Call Trace: __vma_adjust+0xbf3/0x2510 mm/mmap.c:842 vma_adjust include/linux/mm.h:2537 [inline] __split_vma+0x41a/0x4e0 mm/mmap.c:2778 __do_munmap+0xfae/0x1260 mm/mmap.c:2876 do_munmap mm/mmap.c:2930 [inline] munmap_vma_range mm/mmap.c:599 [inline] __mmap_region mm/mmap.c:1763 [inline] mmap_region+0x7c8/0x1500 mm/mmap.c:2953 do_mmap+0xcdb/0x11e0 mm/mmap.c:1590 vm_mmap_pgoff+0x198/0x1f0 mm/util.c:539 ksys_mmap_pgoff+0xde/0x560 mm/mmap.c:1641 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fcbf84e5b19 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:00007fcbf5a5b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fcbf85f8f60 RCX: 00007fcbf84e5b19 RDX: 0000000000000000 RSI: 0000000000400000 RDI: 0000000020000000 RBP: 00007fcbf853ff6d R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000002132 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffb47c480f R14: 00007fcbf5a5b300 R15: 0000000000022000 irq event stamp: 3753 hardirqs last enabled at (3761): [] console_unlock+0x92d/0xb40 kernel/printk/printk.c:2567 hardirqs last disabled at (3772): [] console_unlock+0x839/0xb40 kernel/printk/printk.c:2482 softirqs last enabled at (3256): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (3097): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace 6a7955f3b0d58910 ]--- netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. loop4: detected capacity change from 0 to 1073741312 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 07 ff c0 00 00 02 00 blk_update_request: I/O error, dev sr0, sector 2096896 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 blk_update_request: I/O error, dev loop4, sector 2096896 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0 sr 1:0:0:0: [sr0] tag#0 unaligned transfer blk_update_request: I/O error, dev sr0, sector 2096896 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 blk_update_request: I/O error, dev loop4, sector 2096896 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 Buffer I/O error on dev loop4, logical block 2096896, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer blk_update_request: I/O error, dev sr0, sector 2096897 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 sysfs: cannot create duplicate filename '/class/ieee80211/€˜§°ÇÛ ”uòQÇC !' blk_update_request: I/O error, dev loop4, sector 2096897 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 CPU: 0 PID: 8461 Comm: syz-executor.0 Tainted: G W 5.10.239 #1 Buffer I/O error on dev loop4, logical block 2096897, async page read Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x167 lib/dump_stack.c:118 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30 blk_update_request: I/O error, dev sr0, sector 2096898 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 sysfs_do_create_link_sd+0x122/0x140 fs/sysfs/symlink.c:51 blk_update_request: I/O error, dev loop4, sector 2096898 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 sysfs_do_create_link fs/sysfs/symlink.c:80 [inline] sysfs_create_link+0x5f/0xc0 fs/sysfs/symlink.c:92 Buffer I/O error on dev loop4, logical block 2096898, async page read device_add_class_symlinks drivers/base/core.c:2751 [inline] device_add+0x703/0x1c50 drivers/base/core.c:2959 sr 1:0:0:0: [sr0] tag#0 unaligned transfer wiphy_register+0x1da6/0x2850 net/wireless/core.c:915 blk_update_request: I/O error, dev sr0, sector 2096899 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 sr 1:0:0:0: [sr0] tag#0 unaligned transfer blk_update_request: I/O error, dev sr0, sector 2096900 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 ieee80211_register_hw+0x23c5/0x38b0 net/mac80211/main.c:1295 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer mac80211_hwsim_new_radio+0x1d04/0x4290 drivers/net/wireless/mac80211_hwsim.c:3300 Buffer I/O error on dev loop4, logical block 2096899, async page read hwsim_new_radio_nl+0x991/0x1080 drivers/net/wireless/mac80211_hwsim.c:3881 Buffer I/O error on dev loop4, logical block 2096900, async page read Buffer I/O error on dev loop4, logical block 2096901, async page read Buffer I/O error on dev loop4, logical block 2096902, async page read genl_family_rcv_msg_doit+0x22d/0x330 net/netlink/genetlink.c:739 Buffer I/O error on dev loop4, logical block 2096903, async page read genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0x36a/0x5a0 net/netlink/genetlink.c:800 netlink_rcv_skb+0x14b/0x430 net/netlink/af_netlink.c:2485 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1307 [inline] netlink_unicast+0x54e/0x800 net/netlink/af_netlink.c:1333 netlink_sendmsg+0x90f/0xe00 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:651 [inline] __sock_sendmsg+0x154/0x190 net/socket.c:663 ____sys_sendmsg+0x70d/0x870 net/socket.c:2378 ___sys_sendmsg+0xf3/0x170 net/socket.c:2432 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2461 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f0a8f8e2b19 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:00007f0a8ce58188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0a8f9f5f60 RCX: 00007f0a8f8e2b19 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000006 RBP: 00007f0a8f93cf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe605b479f R14: 00007f0a8ce58300 R15: 0000000000022000 sysfs: cannot create duplicate filename '/class/ieee80211/€˜§°ÇÛ ”uòQÇC !' CPU: 0 PID: 8494 Comm: syz-executor.0 Tainted: G W 5.10.239 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x167 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30 sysfs_do_create_link_sd+0x122/0x140 fs/sysfs/symlink.c:51 sysfs_do_create_link fs/sysfs/symlink.c:80 [inline] sysfs_create_link+0x5f/0xc0 fs/sysfs/symlink.c:92 device_add_class_symlinks drivers/base/core.c:2751 [inline] device_add+0x703/0x1c50 drivers/base/core.c:2959 wiphy_register+0x1da6/0x2850 net/wireless/core.c:915 ieee80211_register_hw+0x23c5/0x38b0 net/mac80211/main.c:1295 mac80211_hwsim_new_radio+0x1d04/0x4290 drivers/net/wireless/mac80211_hwsim.c:3300 hwsim_new_radio_nl+0x991/0x1080 drivers/net/wireless/mac80211_hwsim.c:3881 genl_family_rcv_msg_doit+0x22d/0x330 net/netlink/genetlink.c:739 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0x36a/0x5a0 net/netlink/genetlink.c:800 netlink_rcv_skb+0x14b/0x430 net/netlink/af_netlink.c:2485 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1307 [inline] netlink_unicast+0x54e/0x800 net/netlink/af_netlink.c:1333 netlink_sendmsg+0x90f/0xe00 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:651 [inline] __sock_sendmsg+0x154/0x190 net/socket.c:663 ____sys_sendmsg+0x70d/0x870 net/socket.c:2378 ___sys_sendmsg+0xf3/0x170 net/socket.c:2432 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2461 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f0a8f8e2b19 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:00007f0a8ce37188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0a8f9f6020 RCX: 00007f0a8f8e2b19 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000006 RBP: 00007f0a8f93cf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe605b479f R14: 00007f0a8ce37300 R15: 0000000000022000 loop6: detected capacity change from 0 to 2048 EXT4-fs (loop6): bad geometry: block count 256 exceeds size of device (2 blocks)