VFS: Found a Xenix FS (block size = 512) on device loop0 BUG: sleeping function called from invalid context at fs/buffer.c:1381 in_atomic(): 1, irqs_disabled(): 0, pid: 10418, name: syz-executor.0 3 locks held by syz-executor.0/10418: #0: (sb_writers#15){.+.+}, at: [] sb_start_write include/linux/fs.h:1551 [inline] #0: (sb_writers#15){.+.+}, at: [] mnt_want_write+0x3a/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] inode_lock include/linux/fs.h:719 [inline] #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] do_truncate+0xf0/0x1a0 fs/open.c:61 #2: (pointers_lock){.+.+}, at: [] get_block+0x153/0x1230 fs/sysv/itree.c:217 Preemption disabled at: [< (null)>] (null) CPU: 0 PID: 10418 Comm: syz-executor.0 Not tainted 4.14.305-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 ___might_sleep.cold+0x235/0x250 kernel/sched/core.c:6040 __getblk_gfp fs/buffer.c:1381 [inline] __bread_gfp+0x3e/0x2e0 fs/buffer.c:1428 sb_bread include/linux/buffer_head.h:343 [inline] get_branch+0x2ac/0x600 fs/sysv/itree.c:104 get_block+0x176/0x1230 fs/sysv/itree.c:218 block_truncate_page+0x2a8/0x8f0 fs/buffer.c:2944 sysv_truncate+0x1c4/0xd70 fs/sysv/itree.c:383 sysv_setattr+0x115/0x180 fs/sysv/file.c:47 notify_change+0x56b/0xd10 fs/attr.c:315 do_truncate+0xff/0x1a0 fs/open.c:63 vfs_truncate+0x456/0x680 fs/open.c:120 do_sys_truncate.part.0+0xdc/0xf0 fs/open.c:143 do_sys_truncate fs/open.c:137 [inline] SYSC_truncate fs/open.c:155 [inline] SyS_truncate+0x23/0x40 fs/open.c:153 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7fe4ec1790f9 RSP: 002b:00007fe4ea6eb168 EFLAGS: 00000246 ORIG_RAX: 000000000000004c RAX: ffffffffffffffda RBX: 00007fe4ec298f80 RCX: 00007fe4ec1790f9 RDX: 0000000000000000 RSI: 000000000000317b RDI: 00000000200001c0 RBP: 00007fe4ec1d4ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc7986c16f R14: 00007fe4ea6eb300 R15: 0000000000022000 VFS: Found a Xenix FS (block size = 512) on device loop0 VFS: Found a Xenix FS (block size = 512) on device loop4 VFS: Found a Xenix FS (block size = 512) on device loop0 BUG: sleeping function called from invalid context at fs/buffer.c:1381 in_atomic(): 1, irqs_disabled(): 0, pid: 10471, name: syz-executor.0 3 locks held by syz-executor.0/10471: #0: (sb_writers#15){.+.+}, at: [] sb_start_write include/linux/fs.h:1551 [inline] #0: (sb_writers#15){.+.+}, at: [] mnt_want_write+0x3a/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] inode_lock include/linux/fs.h:719 [inline] #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] do_truncate+0xf0/0x1a0 fs/open.c:61 #2: (pointers_lock){++++}, at: [] get_block+0x153/0x1230 fs/sysv/itree.c:217 Preemption disabled at: [< (null)>] (null) CPU: 1 PID: 10471 Comm: syz-executor.0 Tainted: G W 4.14.305-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 ___might_sleep.cold+0x235/0x250 kernel/sched/core.c:6040 __getblk_gfp fs/buffer.c:1381 [inline] __bread_gfp+0x3e/0x2e0 fs/buffer.c:1428 sb_bread include/linux/buffer_head.h:343 [inline] get_branch+0x2ac/0x600 fs/sysv/itree.c:104 get_block+0x176/0x1230 fs/sysv/itree.c:218 block_truncate_page+0x2a8/0x8f0 fs/buffer.c:2944 sysv_truncate+0x1c4/0xd70 fs/sysv/itree.c:383 sysv_setattr+0x115/0x180 fs/sysv/file.c:47 notify_change+0x56b/0xd10 fs/attr.c:315 do_truncate+0xff/0x1a0 fs/open.c:63 vfs_truncate+0x456/0x680 fs/open.c:120 do_sys_truncate.part.0+0xdc/0xf0 fs/open.c:143 do_sys_truncate fs/open.c:137 [inline] SYSC_truncate fs/open.c:155 [inline] SyS_truncate+0x23/0x40 fs/open.c:153 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7fe4ec1790f9 RSP: 002b:00007fe4ea6eb168 EFLAGS: 00000246 ORIG_RAX: 000000000000004c RAX: ffffffffffffffda RBX: 00007fe4ec298f80 RCX: 00007fe4ec1790f9 RDX: 0000000000000000 RSI: 000000000000317b RDI: 00000000200001c0 RBP: 00007fe4ec1d4ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc7986c16f R14: 00007fe4ea6eb300 R15: 0000000000022000 VFS: Found a Xenix FS (block size = 512) on device loop4 VFS: Found a Xenix FS (block size = 512) on device loop4 VFS: Found a Xenix FS (block size = 512) on device loop0 BUG: sleeping function called from invalid context at fs/buffer.c:1381 in_atomic(): 1, irqs_disabled(): 0, pid: 10533, name: syz-executor.0 3 locks held by syz-executor.0/10533: #0: (sb_writers#15){.+.+}, at: [] sb_start_write include/linux/fs.h:1551 [inline] #0: (sb_writers#15){.+.+}, at: [] mnt_want_write+0x3a/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] inode_lock include/linux/fs.h:719 [inline] #1: (&sb->s_type->i_mutex_key#22){+.+.}, at: [] do_truncate+0xf0/0x1a0 fs/open.c:61 #2: (pointers_lock){++++}, at: [] get_block+0x153/0x1230 fs/sysv/itree.c:217 Preemption disabled at: [< (null)>] (null) CPU: 0 PID: 10533 Comm: syz-executor.0 Tainted: G W 4.14.305-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 ___might_sleep.cold+0x235/0x250 kernel/sched/core.c:6040 __getblk_gfp fs/buffer.c:1381 [inline] __bread_gfp+0x3e/0x2e0 fs/buffer.c:1428 sb_bread include/linux/buffer_head.h:343 [inline] get_branch+0x2ac/0x600 fs/sysv/itree.c:104 get_block+0x176/0x1230 fs/sysv/itree.c:218 block_truncate_page+0x2a8/0x8f0 fs/buffer.c:2944 sysv_truncate+0x1c4/0xd70 fs/sysv/itree.c:383 sysv_setattr+0x115/0x180 fs/sysv/file.c:47 notify_change+0x56b/0xd10 fs/attr.c:315 do_truncate+0xff/0x1a0 fs/open.c:63 vfs_truncate+0x456/0x680 fs/open.c:120 do_sys_truncate.part.0+0xdc/0xf0 fs/open.c:143 do_sys_truncate fs/open.c:137 [inline] SYSC_truncate fs/open.c:155 [inline] SyS_truncate+0x23/0x40 fs/open.c:153 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7fe4ec1790f9 RSP: 002b:00007fe4ea6eb168 EFLAGS: 00000246 ORIG_RAX: 000000000000004c RAX: ffffffffffffffda RBX: 00007fe4ec298f80 RCX: 00007fe4ec1790f9 RDX: 0000000000000000 RSI: 000000000000317b RDI: 00000000200001c0 RBP: 00007fe4ec1d4ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc7986c16f R14: 00007fe4ea6eb300 R15: 0000000000022000 audit: type=1804 audit(1675913662.796:57): pid=10590 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir3687659238/syzkaller.67ZfiJ/49/file0/bus" dev="loop2" ino=22 res=1 befs: (nbd0): No write support. Marking filesystem read-only block nbd0: Attempted send on invalid socket print_req_error: I/O error, dev nbd0, sector 0 befs: (nbd0): No write support. Marking filesystem read-only block nbd0: Attempted send on invalid socket print_req_error: I/O error, dev nbd0, sector 0 audit: type=1804 audit(1675913663.396:58): pid=10618 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir3687659238/syzkaller.67ZfiJ/50/file0/bus" dev="loop2" ino=22 res=1 print_req_error: I/O error, dev loop1, sector 0 print_req_error: I/O error, dev loop1, sector 0 Buffer I/O error on dev loop1, logical block 0, async page read print_req_error: I/O error, dev loop1, sector 0 Buffer I/O error on dev loop1, logical block 0, async page read befs: (nbd0): No write support. Marking filesystem read-only block nbd0: Attempted send on invalid socket print_req_error: I/O error, dev nbd0, sector 0 audit: type=1804 audit(1675913663.766:59): pid=10626 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.1" name="/root/syzkaller-testdir4225233837/syzkaller.BL6E0z/35/file0/bus" dev="loop1" ino=22 res=1 befs: (nbd0): No write support. Marking filesystem read-only block nbd0: Attempted send on invalid socket print_req_error: I/O error, dev nbd0, sector 0 audit: type=1804 audit(1675913663.856:60): pid=10627 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir390111102/syzkaller.KeRDW6/34/file0/bus" dev="loop4" ino=22 res=1 audit: type=1804 audit(1675913663.916:61): pid=10625 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir4032023389/syzkaller.7CwidR/39/file0/bus" dev="loop3" ino=22 res=1 audit: type=1804 audit(1675913664.266:62): pid=10649 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir3687659238/syzkaller.67ZfiJ/51/file0/bus" dev="loop2" ino=22 res=1 audit: type=1804 audit(1675913664.606:63): pid=10667 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir390111102/syzkaller.KeRDW6/35/file0/bus" dev="loop4" ino=22 res=1 audit: type=1804 audit(1675913664.796:64): pid=10672 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.1" name="/root/syzkaller-testdir4225233837/syzkaller.BL6E0z/36/file0/bus" dev="loop1" ino=22 res=1 audit: type=1804 audit(1675913664.886:65): pid=10677 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir4032023389/syzkaller.7CwidR/40/file0/bus" dev="loop3" ino=22 res=1 audit: type=1804 audit(1675913664.936:66): pid=10686 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir3687659238/syzkaller.67ZfiJ/52/file0/bus" dev="loop2" ino=22 res=1 L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. IPVS: ftp: loaded support on port[0] = 21 kauditd_printk_skb: 6 callbacks suppressed audit: type=1804 audit(1675913668.196:73): pid=10789 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir390111102/syzkaller.KeRDW6/38/file0/bus" dev="loop4" ino=22 res=1 audit: type=1804 audit(1675913668.486:74): pid=10806 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir3687659238/syzkaller.67ZfiJ/55/file0/bus" dev="loop2" ino=22 res=1