[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2024-53177":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T14:53:31.930Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":17,"related":18,"reserved_at":9,"published_at":19,"modified_at":20,"state":9,"summary":21,"references_raw":23,"kevs":30,"epss":9,"epss_history":31,"metrics":32,"affected":39},"DEBIAN-CVE-2024-53177","In the Linux kernel, the following vulnerability has been resolved:  smb: prevent use-after-free due to open_cached_dir error paths  If open_cached_dir() encounters an error parsing the lease from the server, the error handling may race with receiving a lease break, resulting in open_cached_dir() freeing the cfid while the queued work is pending.  Update open_cached_dir() to drop refs rather than directly freeing the cfid.  Have cached_dir_lease_break(), cfids_laundromat_worker(), and invalidate_all_cached_dirs() clear has_lease immediately while still holding cfids->cfid_list_lock, and then use this to also simplify the reference counting in cfids_laundromat_worker() and invalidate_all_cached_dirs().  Fixes this KASAN splat (which manually injects an error and lease break in open_cached_dir()):  ================================================================== BUG: KASAN: slab-use-after-free in smb2_cached_lease_break+0x27/0xb0 Read of size 8 at addr ffff88811cc24c10 by task kworker/3:1/65  CPU: 3 UID: 0 PID: 65 Comm: kworker/3:1 Not tainted 6.12.0-rc6-g255cf264e6e5-dirty #87 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020 Workqueue: cifsiod smb2_cached_lease_break Call Trace:  \u003CTASK>  dump_stack_lvl+0x77/0xb0  print_report+0xce/0x660  kasan_report+0xd3/0x110  smb2_cached_lease_break+0x27/0xb0  process_one_work+0x50a/0xc50  worker_thread+0x2ba/0x530  kthread+0x17c/0x1c0  ret_from_fork+0x34/0x60  ret_from_fork_asm+0x1a/0x30  \u003C/TASK>  Allocated by task 2464:  kasan_save_stack+0x33/0x60  kasan_save_track+0x14/0x30  __kasan_kmalloc+0xaa/0xb0  open_cached_dir+0xa7d/0x1fb0  smb2_query_path_info+0x43c/0x6e0  cifs_get_fattr+0x346/0xf10  cifs_get_inode_info+0x157/0x210  cifs_revalidate_dentry_attr+0x2d1/0x460  cifs_getattr+0x173/0x470  vfs_statx_path+0x10f/0x160  vfs_statx+0xe9/0x150  vfs_fstatat+0x5e/0xc0  __do_sys_newfstatat+0x91/0xf0  do_syscall_64+0x95/0x1a0  entry_SYSCALL_64_after_hwframe+0x76/0x7e  Freed by task 2464:  kasan_save_stack+0x33/0x60  kasan_save_track+0x14/0x30  kasan_save_free_info+0x3b/0x60  __kasan_slab_free+0x51/0x70  kfree+0x174/0x520  open_cached_dir+0x97f/0x1fb0  smb2_query_path_info+0x43c/0x6e0  cifs_get_fattr+0x346/0xf10  cifs_get_inode_info+0x157/0x210  cifs_revalidate_dentry_attr+0x2d1/0x460  cifs_getattr+0x173/0x470  vfs_statx_path+0x10f/0x160  vfs_statx+0xe9/0x150  vfs_fstatat+0x5e/0xc0  __do_sys_newfstatat+0x91/0xf0  do_syscall_64+0x95/0x1a0  entry_SYSCALL_64_after_hwframe+0x76/0x7e  Last potentially related work creation:  kasan_save_stack+0x33/0x60  __kasan_record_aux_stack+0xad/0xc0  insert_work+0x32/0x100  __queue_work+0x5c9/0x870  queue_work_on+0x82/0x90  open_cached_dir+0x1369/0x1fb0  smb2_query_path_info+0x43c/0x6e0  cifs_get_fattr+0x346/0xf10  cifs_get_inode_info+0x157/0x210  cifs_revalidate_dentry_attr+0x2d1/0x460  cifs_getattr+0x173/0x470  vfs_statx_path+0x10f/0x160  vfs_statx+0xe9/0x150  vfs_fstatat+0x5e/0xc0  __do_sys_newfstatat+0x91/0xf0  do_syscall_64+0x95/0x1a0  entry_SYSCALL_64_after_hwframe+0x76/0x7e  The buggy address belongs to the object at ffff88811cc24c00  which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 16 bytes inside of  freed 1024-byte region [ffff88811cc24c00, ffff88811cc25000)",null,[],[],[],[14],{"_key":15},"CVE-2024-53177",[],[],[],"2024-12-27T14:15:25.067Z","2026-04-28T20:29:00.545968Z",{"cisa_kev":22,"cisa_ransomware":22,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":9,"severity_score":9,"severity_version":9,"severity_source":9,"severity_vector":9,"severity_status":9},false,[24],{"url":25,"sources":26,"tags":28},"https://security-tracker.debian.org/tracker/CVE-2024-53177",[27],"osv_debian",[29],"Advisory",[],[],[33],{"source":27,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":34,"cvss_v4_0":9},{"baseScore":35,"baseSeverity":9,"vectorString":36,"impactScore":37,"exploitabilityScore":38},7.8,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",9.8,4.6,[40],{"ecosystem":41,"name":42,"vendor":43,"product":42,"cpe_part":9,"purl_type":44,"purl_namespace":43,"purl_name":42,"source":9,"versions":45},"Debian","linux","debian","deb",[46,52],{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":50,"version_end_type":51,"fixed_in":9},"lt6_12_3_1",true,"ecosystem","6.12.3-1","excluding",{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":50,"version_end_type":51,"fixed_in":9}]