do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x95/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c ===================================================== BUG: KMSAN: uninit-value in on_stack arch/x86/include/asm/stacktrace.h:58 [inline] BUG: KMSAN: uninit-value in show_regs_if_on_stack+0x4a2/0x530 arch/x86/kernel/dumpstack.c:166 on_stack arch/x86/include/asm/stacktrace.h:58 [inline] show_regs_if_on_stack+0x4a2/0x530 arch/x86/kernel/dumpstack.c:166 show_trace_log_lvl+0x208/0x2d0 arch/x86/kernel/dumpstack.c:298 show_regs+0xad/0xd0 arch/x86/kernel/dumpstack.c:475 __warn+0x242/0x580 kernel/panic.c:596 report_bug+0x7d4/0x9e0 lib/bug.c:199 handle_bug+0x41/0x70 arch/x86/kernel/traps.c:315 exc_invalid_op+0x1b/0x50 arch/x86/kernel/traps.c:335 asm_exc_invalid_op+0x12/0x20 arch_set_bit arch/x86/include/asm/bitops.h:55 [inline] set_bit include/asm-generic/bitops/instrumented-atomic.h:29 [inline] set_sbi_flag fs/f2fs/f2fs.h:2046 [inline] f2fs_is_valid_blkaddr+0xbef/0x11d0 fs/f2fs/checkpoint.c:198 f2fs_get_node_info+0xc35/0x1770 fs/f2fs/node.c:613 read_node_page+0x434/0xf90 fs/f2fs/node.c:1356 __get_node_page+0x4d5/0x16e0 fs/f2fs/node.c:1417 f2fs_get_node_page+0x36/0x40 fs/f2fs/node.c:1463 do_read_inode fs/f2fs/inode.c:350 [inline] f2fs_iget+0x10c1/0x7ee0 fs/f2fs/inode.c:506 f2fs_fill_super+0x9a8c/0xbf70 fs/f2fs/super.c:4245 mount_bdev+0x508/0x840 fs/super.c:1367 f2fs_mount+0x49/0x60 fs/f2fs/super.c:4484 legacy_get_tree+0x10c/0x280 fs/fs_context.c:610 vfs_get_tree+0xa1/0x500 fs/super.c:1497 do_new_mount+0x694/0x1580 fs/namespace.c:3040 path_mount+0x72f/0x1ed0 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x73e/0x850 fs/namespace.c:3568 __ia32_sys_mount+0xdf/0x140 fs/namespace.c:3568 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x95/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c Local variable wait created at: mempool_alloc+0x48/0x560 mm/mempool.c:378 bio_alloc_bioset+0x234/0x12a0 block/bio.c:492 CPU: 0 PID: 13475 Comm: syz-executor.4 Not tainted 5.18.0-syzkaller-16269-geb5e8c791e57 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 =====================================================