{"id":"CVE-2023-53616","summary":"jfs: fix invalid free of JFS_IP(ipimap)-\u003ei_imap in diUnmount","details":"In the Linux kernel, the following vulnerability has been resolved:\n\njfs: fix invalid free of JFS_IP(ipimap)-\u003ei_imap in diUnmount\n\nsyzbot found an invalid-free in diUnmount:\n\nBUG: KASAN: double-free in slab_free mm/slub.c:3661 [inline]\nBUG: KASAN: double-free in __kmem_cache_free+0x71/0x110 mm/slub.c:3674\nFree of addr ffff88806f410000 by task syz-executor131/3632\n\n CPU: 0 PID: 3632 Comm: syz-executor131 Not tainted 6.1.0-rc7-syzkaller-00012-gca57f02295f1 #0\n Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022\n Call Trace:\n  \u003cTASK\u003e\n  __dump_stack lib/dump_stack.c:88 [inline]\n  dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106\n  print_address_description+0x74/0x340 mm/kasan/report.c:284\n  print_report+0x107/0x1f0 mm/kasan/report.c:395\n  kasan_report_invalid_free+0xac/0xd0 mm/kasan/report.c:460\n  ____kasan_slab_free+0xfb/0x120\n  kasan_slab_free include/linux/kasan.h:177 [inline]\n  slab_free_hook mm/slub.c:1724 [inline]\n  slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1750\n  slab_free mm/slub.c:3661 [inline]\n  __kmem_cache_free+0x71/0x110 mm/slub.c:3674\n  diUnmount+0xef/0x100 fs/jfs/jfs_imap.c:195\n  jfs_umount+0x108/0x370 fs/jfs/jfs_umount.c:63\n  jfs_put_super+0x86/0x190 fs/jfs/super.c:194\n  generic_shutdown_super+0x130/0x310 fs/super.c:492\n  kill_block_super+0x79/0xd0 fs/super.c:1428\n  deactivate_locked_super+0xa7/0xf0 fs/super.c:332\n  cleanup_mnt+0x494/0x520 fs/namespace.c:1186\n  task_work_run+0x243/0x300 kernel/task_work.c:179\n  exit_task_work include/linux/task_work.h:38 [inline]\n  do_exit+0x664/0x2070 kernel/exit.c:820\n  do_group_exit+0x1fd/0x2b0 kernel/exit.c:950\n  __do_sys_exit_group kernel/exit.c:961 [inline]\n  __se_sys_exit_group kernel/exit.c:959 [inline]\n  __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:959\n  do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n  do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80\n  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n[...]\n\nJFS_IP(ipimap)-\u003ei_imap is not setting to NULL after free in diUnmount.\nIf jfs_remount() free JFS_IP(ipimap)-\u003ei_imap but then failed at diMount().\nJFS_IP(ipimap)-\u003ei_imap will be freed once again.\nFix this problem by setting JFS_IP(ipimap)-\u003ei_imap to NULL after free.","modified":"2026-04-02T09:44:37.601576Z","published":"2025-10-04T15:44:23.056Z","related":["SUSE-SU-2025:21040-1","SUSE-SU-2025:21052-1","SUSE-SU-2025:21056-1","SUSE-SU-2025:21064-1","SUSE-SU-2025:4057-1","SUSE-SU-2025:4111-1","SUSE-SU-2025:4128-1","SUSE-SU-2025:4132-1","SUSE-SU-2025:4139-1","SUSE-SU-2025:4140-1","SUSE-SU-2025:4141-1","SUSE-SU-2025:4149-1","SUSE-SU-2025:4301-1","SUSE-SU-2025:4320-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53616.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/114ea3cb13ab25f7178cb60283adb93d2f96dad7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4de3a603010e0ca334487de24c6aab0777b7f808"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5873df0195124be2f357de11bfd473ead4f90ed8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6e2bda2c192d0244b5a78b787ef20aa10cb319b7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/756747d4b439e3e1159282ae89f17eefebbe9b25"},{"type":"WEB","url":"https://git.kernel.org/stable/c/88484bde6f12126616b38e43b6c00edcd941f615"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c3c0f0ddd851b3fa3e9d3450bbcd561f4f850469"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ef7311101ca43dd73b45bca7a30ac72d9535ff87"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53616.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53616"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"},{"fixed":"c3c0f0ddd851b3fa3e9d3450bbcd561f4f850469"},{"fixed":"114ea3cb13ab25f7178cb60283adb93d2f96dad7"},{"fixed":"5873df0195124be2f357de11bfd473ead4f90ed8"},{"fixed":"756747d4b439e3e1159282ae89f17eefebbe9b25"},{"fixed":"ef7311101ca43dd73b45bca7a30ac72d9535ff87"},{"fixed":"4de3a603010e0ca334487de24c6aab0777b7f808"},{"fixed":"88484bde6f12126616b38e43b6c00edcd941f615"},{"fixed":"6e2bda2c192d0244b5a78b787ef20aa10cb319b7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53616.json"}}],"schema_version":"1.7.5"}