syzbot

loop1: detected capacity change from 0 to 2224
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BUG: KCSAN: data-race in has_bh_in_lru / invalidate_bh_lru

write to 0xffff888237c28438 of 8 bytes by task 10111 on cpu 0:
 __invalidate_bh_lrus fs/buffer.c:1392 [inline]
 invalidate_bh_lru+0xad/0x110 fs/buffer.c:1404
 smp_call_function_many_cond+0x4f1/0x6d0 kernel/smp.c:960
 on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1135
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x26/0x30 fs/buffer.c:1423
 kill_bdev block/bdev.c:76 [inline]
 set_blocksize+0x242/0x270 block/bdev.c:153
 sb_set_blocksize+0x2c/0xa0 block/bdev.c:162
 isofs_fill_super+0xfc2/0x17b0 fs/isofs/inode.c:862
 mount_bdev+0x1e2/0x280 fs/super.c:1367
 isofs_mount+0x2d/0x40 fs/isofs/inode.c:1567
 legacy_get_tree+0x70/0xc0 fs/fs_context.c:610
 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 0xffff888237c28438 of 8 bytes by task 10112 on cpu 1:
 has_bh_in_lru+0x31/0x1c0 fs/buffer.c:1414
 smp_call_function_many_cond+0x2a9/0x6d0 kernel/smp.c:917
 on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1135
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x26/0x30 fs/buffer.c:1423
 kill_bdev block/bdev.c:76 [inline]
 set_blocksize+0x242/0x270 block/bdev.c:153
 sb_set_blocksize+0x2c/0xa0 block/bdev.c:162
 isofs_fill_super+0xfc2/0x17b0 fs/isofs/inode.c:862
 mount_bdev+0x1e2/0x280 fs/super.c:1367
 isofs_mount+0x2d/0x40 fs/isofs/inode.c:1567
 legacy_get_tree+0x70/0xc0 fs/fs_context.c:610
 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: 0xffff888169a55888 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 10112 Comm: syz-executor.1 Not tainted 5.18.0-syzkaller-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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