EXT4-fs (loop3): bad geometry: first data block 262144 is beyond end of filesystem (64) ================================================================== BUG: KCSAN: data-race in data_push_tail / number write to 0xffffffff86e76635 of 1 bytes by task 2902 on cpu 1: number+0x8a7/0xbe0 lib/vsprintf.c:561 vsnprintf+0xa5e/0xe80 lib/vsprintf.c:2872 va_format lib/vsprintf.c:1704 [inline] pointer+0x685/0x910 lib/vsprintf.c:2443 vsnprintf+0x905/0xe80 lib/vsprintf.c:2810 vscnprintf+0x3e/0x80 lib/vsprintf.c:2912 printk_sprint kernel/printk/printk.c:2099 [inline] vprintk_store+0x61d/0xb40 kernel/printk/printk.c:2209 vprintk_emit+0xcc/0x430 kernel/printk/printk.c:2256 vprintk_default+0x22/0x30 kernel/printk/printk.c:2283 vprintk+0x7f/0x90 kernel/printk/printk_safe.c:50 _printk+0x76/0x96 kernel/printk/printk.c:2293 __ext4_msg+0x16d/0x180 fs/ext4/super.c:944 ext4_fill_super+0x1e25/0x3a90 fs/ext4/super.c:5603 get_tree_bdev+0x2b4/0x3b0 fs/super.c:1292 vfs_get_tree+0x49/0x190 fs/super.c:1497 do_new_mount+0x200/0x650 fs/namespace.c:3040 path_mount+0x4b1/0xb60 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x281/0x2d0 fs/namespace.c:3568 __x64_sys_mount+0x63/0x70 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffffffff86e76630 of 8 bytes by task 2897 on cpu 0: data_make_reusable kernel/printk/printk_ringbuffer.c:590 [inline] data_push_tail+0x10f/0x440 kernel/printk/printk_ringbuffer.c:675 data_alloc+0xbc/0x2b0 kernel/printk/printk_ringbuffer.c:1046 prb_reserve+0x897/0xbd0 kernel/printk/printk_ringbuffer.c:1555 vprintk_store+0x54d/0xb40 kernel/printk/printk.c:2199 vprintk_emit+0xcc/0x430 kernel/printk/printk.c:2256 vprintk_default+0x22/0x30 kernel/printk/printk.c:2283 vprintk+0x7f/0x90 kernel/printk/printk_safe.c:50 _printk+0x76/0x96 kernel/printk/printk.c:2293 __ext4_msg+0x16d/0x180 fs/ext4/super.c:944 ext4_fill_super+0x1fa0/0x3a90 fs/ext4/super.c:5603 get_tree_bdev+0x2b4/0x3b0 fs/super.c:1292 vfs_get_tree+0x49/0x190 fs/super.c:1497 do_new_mount+0x200/0x650 fs/namespace.c:3040 path_mount+0x4b1/0xb60 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x281/0x2d0 fs/namespace.c:3568 __x64_sys_mount+0x63/0x70 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00000001000055e1 -> 0x303237383520746e Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 2897 Comm: syz-executor.3 Not tainted 5.18.0-rc7-syzkaller-00181-geaea45fc0e7b-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================