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CVE-2024-50086— ksmbd: fix user-after-free from session log off

EPSS 0.02% · P4
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I. Basic Information for CVE-2024-50086

Vulnerability Information
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Vulnerability Title
ksmbd: fix user-after-free from session log off
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix user-after-free from session log off There is racy issue between smb2 session log off and smb2 session setup. It will cause user-after-free from session log off. This add session_lock when setting SMB2_SESSION_EXPIRED and referece count to session struct not to free session while it is being used.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在处理smb2会话注销和设置过程中存在竞态条件，可能导致内存释放后重用问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 0626e6641f6b467447c81dd7678a69c66f7746cf ~ 0f62358ce85b2d4c949ef1b648be01b29cec667a -
LinuxLinux 5.15 -

II. Public POCs for CVE-2024-50086

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III. Intelligence Information for CVE-2024-50086

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Same Patch Batch · Linux · 2024-10-29 · 21 CVEs total

CVE-2024-50077Bluetooth: ISO: Fix multiple init when debugfs is disabled
CVE-2024-50068mm/damon/tests/sysfs-kunit.h: fix memory leak in damon_sysfs_test_add_targets()
CVE-2024-50069pinctrl: apple: check devm_kasprintf() returned value
CVE-2024-50070pinctrl: stm32: check devm_kasprintf() returned value
CVE-2024-50071pinctrl: nuvoton: fix a double free in ma35_pinctrl_dt_node_to_map_func()
CVE-2024-50072x86/bugs: Use code segment selector for VERW operand
CVE-2024-50073tty: n_gsm: Fix use-after-free in gsm_cleanup_mux
CVE-2024-50074parport: Proper fix for array out-of-bounds access
CVE-2024-50075xhci: tegra: fix checked USB2 port number
CVE-2024-50076vt: prevent kernel-infoleak in con_font_get()
CVE-2024-50088btrfs: fix uninitialized pointer free in add_inode_ref()
CVE-2024-50078Bluetooth: Call iso_exit() on module unload
CVE-2024-50079io_uring/sqpoll: ensure task state is TASK_RUNNING when running task_work
CVE-2024-50080ublk: don't allow user copy for unprivileged device
CVE-2024-50081blk-mq: setup queue ->tag_set before initializing hctx
CVE-2024-50082blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race
CVE-2024-50083tcp: fix mptcp DSS corruption due to large pmtu xmit
CVE-2024-50084net: microchip: vcap api: Fix memory leaks in vcap_api_encode_rule_test()
CVE-2024-50085mptcp: pm: fix UaF read in mptcp_pm_nl_rm_addr_or_subflow
CVE-2024-50087btrfs: fix uninitialized pointer free on read_alloc_one_name() error

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-50086

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