[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2026-23428":6},{"stargazers_count":4,"fetched_at":5},7,"2026-07-31T03:17:55.401Z",{"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-2026-23428","In the Linux kernel, the following vulnerability has been resolved:  ksmbd: fix use-after-free of share_conf in compound request  smb2_get_ksmbd_tcon() reuses work->tcon in compound requests without validating tcon->t_state. ksmbd_tree_conn_lookup() checks t_state == TREE_CONNECTED on the initial lookup path, but the compound reuse path bypasses this check entirely.  If a prior command in the compound (SMB2_TREE_DISCONNECT) sets t_state to TREE_DISCONNECTED and frees share_conf via ksmbd_share_config_put(), subsequent commands dereference the freed share_conf through work->tcon->share_conf.  KASAN report:  [    4.144653] ================================================================== [    4.145059] BUG: KASAN: slab-use-after-free in smb2_write+0xc74/0xe70 [    4.145415] Read of size 4 at addr ffff88810430c194 by task kworker/1:1/44 [    4.145772] [    4.145867] CPU: 1 UID: 0 PID: 44 Comm: kworker/1:1 Not tainted 7.0.0-rc3+ #60 PREEMPTLAZY [    4.145871] Hardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [    4.145875] Workqueue: ksmbd-io handle_ksmbd_work [    4.145888] Call Trace: [    4.145892]  \u003CTASK> [    4.145894]  dump_stack_lvl+0x64/0x80 [    4.145910]  print_report+0xce/0x660 [    4.145919]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10 [    4.145928]  ? smb2_write+0xc74/0xe70 [    4.145931]  kasan_report+0xce/0x100 [    4.145934]  ? smb2_write+0xc74/0xe70 [    4.145937]  smb2_write+0xc74/0xe70 [    4.145939]  ? __pfx_smb2_write+0x10/0x10 [    4.145942]  ? _raw_spin_unlock+0xe/0x30 [    4.145945]  ? ksmbd_smb2_check_message+0xeb2/0x24c0 [    4.145948]  ? smb2_tree_disconnect+0x31c/0x480 [    4.145951]  handle_ksmbd_work+0x40f/0x1080 [    4.145953]  process_one_work+0x5fa/0xef0 [    4.145962]  ? assign_work+0x122/0x3e0 [    4.145964]  worker_thread+0x54b/0xf70 [    4.145967]  ? __pfx_worker_thread+0x10/0x10 [    4.145970]  kthread+0x346/0x470 [    4.145976]  ? recalc_sigpending+0x19b/0x230 [    4.145980]  ? __pfx_kthread+0x10/0x10 [    4.145984]  ret_from_fork+0x4fb/0x6c0 [    4.145992]  ? __pfx_ret_from_fork+0x10/0x10 [    4.145995]  ? __switch_to+0x36c/0xbe0 [    4.145999]  ? __pfx_kthread+0x10/0x10 [    4.146003]  ret_from_fork_asm+0x1a/0x30 [    4.146013]  \u003C/TASK> [    4.146014] [    4.149858] Allocated by task 44: [    4.149953]  kasan_save_stack+0x33/0x60 [    4.150061]  kasan_save_track+0x14/0x30 [    4.150169]  __kasan_kmalloc+0x8f/0xa0 [    4.150274]  ksmbd_share_config_get+0x1dd/0xdd0 [    4.150401]  ksmbd_tree_conn_connect+0x7e/0x600 [    4.150529]  smb2_tree_connect+0x2e6/0x1000 [    4.150645]  handle_ksmbd_work+0x40f/0x1080 [    4.150761]  process_one_work+0x5fa/0xef0 [    4.150873]  worker_thread+0x54b/0xf70 [    4.150978]  kthread+0x346/0x470 [    4.151071]  ret_from_fork+0x4fb/0x6c0 [    4.151176]  ret_from_fork_asm+0x1a/0x30 [    4.151286] [    4.151332] Freed by task 44: [    4.151418]  kasan_save_stack+0x33/0x60 [    4.151526]  kasan_save_track+0x14/0x30 [    4.151634]  kasan_save_free_info+0x3b/0x60 [    4.151751]  __kasan_slab_free+0x43/0x70 [    4.151861]  kfree+0x1ca/0x430 [    4.151952]  __ksmbd_tree_conn_disconnect+0xc8/0x190 [    4.152088]  smb2_tree_disconnect+0x1cd/0x480 [    4.152211]  handle_ksmbd_work+0x40f/0x1080 [    4.152326]  process_one_work+0x5fa/0xef0 [    4.152438]  worker_thread+0x54b/0xf70 [    4.152545]  kthread+0x346/0x470 [    4.152638]  ret_from_fork+0x4fb/0x6c0 [    4.152743]  ret_from_fork_asm+0x1a/0x30 [    4.152853] [    4.152900] The buggy address belongs to the object at ffff88810430c180 [    4.152900]  which belongs to the cache kmalloc-96 of size 96 [    4.153226] The buggy address is located 20 bytes inside of [    4.153226]  freed 96-byte region [ffff88810430c180, ffff88810430c1e0) [    4.153549] [    4.153596] The buggy address belongs to the physical page: [    4.153750] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88810430ce80 pfn:0x10430c [    4.154000] flags: 0x ---truncated---",null,[],[],[],[14],{"_key":15},"CVE-2026-23428",[],[],[],"2026-04-03T16:16:23.993Z","2026-06-15T19:06:11.743758572Z",{"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-2026-23428",[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,[40,61],{"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",[46,50,51,55,58],{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},"all",true,"ecosystem",{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":52,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":53,"version_end_type":54,"fixed_in":9},"lt6_1_170_1","6.1.170-1","excluding",{"version":56,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":57,"version_end_type":54,"fixed_in":9},"lt6_12_85_1","6.12.85-1",{"version":59,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":60,"version_end_type":54,"fixed_in":9},"lt6_19_10_1","6.19.10-1",{"ecosystem":41,"name":62,"vendor":43,"product":62,"cpe_part":9,"purl_type":44,"purl_namespace":43,"purl_name":62,"source":9,"versions":63},"linux-6.1",[64],{"version":65,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":66,"version_end_type":54,"fixed_in":9},"lt6_1_170_1~deb11u1","6.1.170-1~deb11u1"]