{"id":"DEBIAN-CVE-2023-53616","details":"In the Linux kernel, the following vulnerability has been resolved:  jfs: fix invalid free of JFS_IP(ipimap)-\u003ei_imap in diUnmount  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:   \u003cTASK\u003e   __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)-\u003ei_imap is not setting to NULL after free in diUnmount. If jfs_remount() free JFS_IP(ipimap)-\u003ei_imap but then failed at diMount(). JFS_IP(ipimap)-\u003ei_imap will be freed once again. Fix this problem by setting JFS_IP(ipimap)-\u003ei_imap to NULL after free.","modified":"2026-09-15T09:03:01.879422419Z","published":"2025-10-04T16:15:58.460Z","upstream":["CVE-2023-53616"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-53616"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.55-1"}]}],"versions":["6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1~bpo11+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53616.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.6-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53616.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.6-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53616.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}