Hello, syzbot found the following issue on: HEAD commit: fe15c26ee26e Linux 6.3-rc1 git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=1100fce2c80000 kernel config: https://syzkaller.appspot.com/x/.config?x=7573cbcd881a88c9 dashboard link: https://syzkaller.appspot.com/bug?extid=64b645917ce07d89bde5 compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/89d41abd07bd/disk-fe15c26e.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/fa75f5030ade/vmlinux-fe15c26e.xz kernel image: https://storage.googleapis.com/syzbot-assets/590d0f5903ee/Image-fe15c26e.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+64b645917ce07d89bde5@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 1 PID: 9389 at mm/slab_common.c:935 free_large_kmalloc+0x34/0x138 mm/slab_common.c:936 Modules linked in: CPU: 1 PID: 9389 Comm: syz-executor.5 Not tainted 6.3.0-rc1-syzkaller-gfe15c26ee26e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : free_large_kmalloc+0x34/0x138 mm/slab_common.c:936 lr : kfree+0x184/0x228 mm/slab_common.c:1013 sp : ffff8000227974e0 x29: ffff8000227974e0 x28: 00000000000003bc x27: ffff000142fd15a4 x26: dfff800000000000 x25: 0000000000000020 x24: ffff0000c4f01c00 x23: 0000000000000020 x22: ffff00012f6d48e8 x21: ffff800008829ce8 x20: ffff000142fd15a4 x19: fffffc00050bf440 x18: ffff8000227970e0 x17: ffff800015cdd000 x16: ffff800008313a3c x15: 0000000000000000 x14: 00000000ffff8000 x13: 00000000ecdf532c x12: 0000000000000003 x11: ff8080000809b854 x10: 0000000000000000 x9 : 05ffc0000000203a x8 : ffff8000186ee000 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : fffffffffffffff0 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff000142fd15a4 x0 : fffffc00050bf440 Call trace: free_large_kmalloc+0x34/0x138 mm/slab_common.c:936 kfree+0x184/0x228 mm/slab_common.c:1013 kvfree+0x40/0x50 mm/util.c:649 ext4_xattr_move_to_block fs/ext4/xattr.c:2680 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2743 [inline] ext4_expand_extra_isize_ea+0xcf8/0x1620 fs/ext4/xattr.c:2835 __ext4_expand_extra_isize+0x290/0x348 fs/ext4/inode.c:5955 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5998 [inline] __ext4_mark_inode_dirty+0x5dc/0xa94 fs/ext4/inode.c:6076 __ext4_unlink+0x768/0x998 fs/ext4/namei.c:3256 ext4_unlink+0x2ec/0xb10 fs/ext4/namei.c:3299 vfs_unlink+0x2f0/0x508 fs/namei.c:4250 do_unlinkat+0x4c8/0x82c fs/namei.c:4316 __do_sys_unlinkat fs/namei.c:4359 [inline] __se_sys_unlinkat fs/namei.c:4352 [inline] __arm64_sys_unlinkat+0xcc/0xfc fs/namei.c:4352 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 irq event stamp: 3482 hardirqs last enabled at (3481): [<ffff80000898bb44>] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:242 hardirqs last disabled at (3482): [<ffff80001245e098>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (3300): [<ffff800008034240>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (3298): [<ffff80000803420c>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- object pointer: 0x000000000b8c335f ================================================================== BUG: KASAN: invalid-free in kfree+0x184/0x228 mm/slab_common.c:1013 Free of addr ffff000142fd15a4 by task syz-executor.5/9389 CPU: 0 PID: 9389 Comm: syz-executor.5 Tainted: G W 6.3.0-rc1-syzkaller-gfe15c26ee26e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:319 [inline] print_report+0x174/0x514 mm/kasan/report.c:430 kasan_report_invalid_free+0xc4/0x114 mm/kasan/report.c:501 __kasan_kfree_large+0xa4/0xc0 mm/kasan/common.c:272 kasan_kfree_large include/linux/kasan.h:170 [inline] free_large_kmalloc+0x70/0x138 mm/slab_common.c:939 kfree+0x184/0x228 mm/slab_common.c:1013 kvfree+0x40/0x50 mm/util.c:649 ext4_xattr_move_to_block fs/ext4/xattr.c:2680 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2743 [inline] ext4_expand_extra_isize_ea+0xcf8/0x1620 fs/ext4/xattr.c:2835 __ext4_expand_extra_isize+0x290/0x348 fs/ext4/inode.c:5955 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5998 [inline] __ext4_mark_inode_dirty+0x5dc/0xa94 fs/ext4/inode.c:6076 __ext4_unlink+0x768/0x998 fs/ext4/namei.c:3256 ext4_unlink+0x2ec/0xb10 fs/ext4/namei.c:3299 vfs_unlink+0x2f0/0x508 fs/namei.c:4250 do_unlinkat+0x4c8/0x82c fs/namei.c:4316 __do_sys_unlinkat fs/namei.c:4359 [inline] __se_sys_unlinkat fs/namei.c:4352 [inline] __arm64_sys_unlinkat+0xcc/0xfc fs/namei.c:4352 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 The buggy address belongs to the physical page: page:000000004ed01e6f refcount:2 mapcount:0 mapping:0000000047d3c139 index:0x1 pfn:0x182fd1 memcg:ffff000131a56000 aops:def_blk_aops ino:700005 flags: 0x5ffc0000000203a(referenced|dirty|lru|active|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc0000000203a fffffc0003531048 fffffc0005118988 ffff0000c0497610 raw: 0000000000000001 ffff0000e0738cb0 00000002ffffffff ffff000131a56000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff000142fd1480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff000142fd1500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff000142fd1580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff000142fd1600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff000142fd1680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== --- This report is generated by a bot. 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