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https://gitee.com/bianbu-linux/linux-6.6-fh
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6e2bda2c19
syzbot found an invalid-free in diUnmount: BUG: KASAN: double-free in slab_free mm/slub.c:3661 [inline] BUG: KASAN: double-free in __kmem_cache_free+0x71/0x110 mm/slub.c:3674 Free of addr ffff88806f410000 by task syz-executor131/3632 CPU: 0 PID: 3632 Comm: syz-executor131 Not tainted 6.1.0-rc7-syzkaller-00012-gca57f02295f1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 print_address_description+0x74/0x340 mm/kasan/report.c:284 print_report+0x107/0x1f0 mm/kasan/report.c:395 kasan_report_invalid_free+0xac/0xd0 mm/kasan/report.c:460 ____kasan_slab_free+0xfb/0x120 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1750 slab_free mm/slub.c:3661 [inline] __kmem_cache_free+0x71/0x110 mm/slub.c:3674 diUnmount+0xef/0x100 fs/jfs/jfs_imap.c:195 jfs_umount+0x108/0x370 fs/jfs/jfs_umount.c:63 jfs_put_super+0x86/0x190 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x310 fs/super.c:492 kill_block_super+0x79/0xd0 fs/super.c:1428 deactivate_locked_super+0xa7/0xf0 fs/super.c:332 cleanup_mnt+0x494/0x520 fs/namespace.c:1186 task_work_run+0x243/0x300 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x664/0x2070 kernel/exit.c:820 do_group_exit+0x1fd/0x2b0 kernel/exit.c:950 __do_sys_exit_group kernel/exit.c:961 [inline] __se_sys_exit_group kernel/exit.c:959 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:959 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd [...] JFS_IP(ipimap)->i_imap is not setting to NULL after free in diUnmount. If jfs_remount() free JFS_IP(ipimap)->i_imap but then failed at diMount(). JFS_IP(ipimap)->i_imap will be freed once again. Fix this problem by setting JFS_IP(ipimap)->i_imap to NULL after free. Reported-by: syzbot+90a11e6b1e810785c6ff@syzkaller.appspotmail.com Signed-off-by: Liu Shixin <liushixin2@huawei.com> Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com> |
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| .. | ||
| acl.c | ||
| file.c | ||
| inode.c | ||
| ioctl.c | ||
| jfs_acl.h | ||
| jfs_btree.h | ||
| jfs_debug.c | ||
| jfs_debug.h | ||
| jfs_dinode.h | ||
| jfs_discard.c | ||
| jfs_discard.h | ||
| jfs_dmap.c | ||
| jfs_dmap.h | ||
| jfs_dtree.c | ||
| jfs_dtree.h | ||
| jfs_extent.c | ||
| jfs_extent.h | ||
| jfs_filsys.h | ||
| jfs_imap.c | ||
| jfs_imap.h | ||
| jfs_incore.h | ||
| jfs_inode.c | ||
| jfs_inode.h | ||
| jfs_lock.h | ||
| jfs_logmgr.c | ||
| jfs_logmgr.h | ||
| jfs_metapage.c | ||
| jfs_metapage.h | ||
| jfs_mount.c | ||
| jfs_superblock.h | ||
| jfs_txnmgr.c | ||
| jfs_txnmgr.h | ||
| jfs_types.h | ||
| jfs_umount.c | ||
| jfs_unicode.c | ||
| jfs_unicode.h | ||
| jfs_uniupr.c | ||
| jfs_xattr.h | ||
| jfs_xtree.c | ||
| jfs_xtree.h | ||
| Kconfig | ||
| Makefile | ||
| namei.c | ||
| resize.c | ||
| super.c | ||
| symlink.c | ||
| xattr.c | ||