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CVE-2024-50078— Bluetooth: Call iso_exit() on module unload

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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，该漏洞源于在模块卸载时未调用iso_exit函数，导致注册的struct proto变为无效。

CVSS 7.8 · High EPSS 0.21% · P12

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux ccf74f2390d60a2f9a75ef496d2564abb478f46a< 4af7ba39a1a02e16ee8cd0d3b6c6657f51b8ad7a affected
ccf74f2390d60a2f9a75ef496d2564abb478f46a< 05f84d86169b2ebac185c5736a256823d42c425b affected
ccf74f2390d60a2f9a75ef496d2564abb478f46a< f905a7d95091e0d2605a3a1a157a9351f09ab2e1 affected
ccf74f2390d60a2f9a75ef496d2564abb478f46a< d458cd1221e9e56da3b2cc5518ad3225caa91f20 affected
6.0 affected
< 6.0 unaffected
6.1.114≤ 6.1.* unaffected
6.6.58≤ 6.6.* unaffected
… +2 more rows
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I. Basic Information for CVE-2024-50078

Vulnerability Information
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Vulnerability Title
Bluetooth: Call iso_exit() on module unload
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Call iso_exit() on module unload If iso_init() has been called, iso_exit() must be called on module unload. Without that, the struct proto that iso_init() registered with proto_register() becomes invalid, which could cause unpredictable problems later. In my case, with CONFIG_LIST_HARDENED and CONFIG_BUG_ON_DATA_CORRUPTION enabled, loading the module again usually triggers this BUG(): list_add corruption. next->prev should be prev (ffffffffb5355fd0), but was 0000000000000068. (next=ffffffffc0a010d0). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:29! Oops: invalid opcode: 0000 [#1] PREEMPT SMP PTI CPU: 1 PID: 4159 Comm: modprobe Not tainted 6.10.11-4+bt2-ao-desktop #1 RIP: 0010:__list_add_valid_or_report+0x61/0xa0 ... __list_add_valid_or_report+0x61/0xa0 proto_register+0x299/0x320 hci_sock_init+0x16/0xc0 [bluetooth] bt_init+0x68/0xd0 [bluetooth] __pfx_bt_init+0x10/0x10 [bluetooth] do_one_initcall+0x80/0x2f0 do_init_module+0x8b/0x230 __do_sys_init_module+0x15f/0x190 do_syscall_64+0x68/0x110 ...
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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，该漏洞源于在模块卸载时未调用iso_exit函数，导致注册的struct proto变为无效。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux ccf74f2390d60a2f9a75ef496d2564abb478f46a ~ 4af7ba39a1a02e16ee8cd0d3b6c6657f51b8ad7a -
Linux Linux 6.0 -

II. Public POCs for CVE-2024-50078

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III. Intelligence Information for CVE-2024-50078

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Patches & Fixes for CVE-2024-50078 (1)

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

CVE-2024-50086 9.8 CRITICAL ksmbd: fix user-after-free from session log off
CVE-2024-50085 9.8 CRITICAL mptcp: pm: fix UaF read in mptcp_pm_nl_rm_addr_or_subflow
CVE-2024-50075 8.0 HIGH xhci: tegra: fix checked USB2 port number
CVE-2024-50087 7.8 HIGH btrfs: fix uninitialized pointer free on read_alloc_one_name() error
CVE-2024-50073 7.8 HIGH tty: n_gsm: Fix use-after-free in gsm_cleanup_mux
CVE-2024-50074 7.8 HIGH parport: Proper fix for array out-of-bounds access
CVE-2024-50077 7.8 HIGH Bluetooth: ISO: Fix multiple init when debugfs is disabled
CVE-2024-50082 7.8 HIGH blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race
CVE-2024-50088 7.8 HIGH btrfs: fix uninitialized pointer free in add_inode_ref()
CVE-2024-50081 blk-mq: setup queue ->tag_set before initializing hctx
CVE-2024-50080 ublk: don't allow user copy for unprivileged device
CVE-2024-50079 io_uring/sqpoll: ensure task state is TASK_RUNNING when running task_work
CVE-2024-50076 vt: prevent kernel-infoleak in con_font_get()
CVE-2024-50083 tcp: fix mptcp DSS corruption due to large pmtu xmit
CVE-2024-50084 net: microchip: vcap api: Fix memory leaks in vcap_api_encode_rule_test()
CVE-2024-50072 x86/bugs: Use code segment selector for VERW operand
CVE-2024-50071 pinctrl: nuvoton: fix a double free in ma35_pinctrl_dt_node_to_map_func()
CVE-2024-50070 pinctrl: stm32: check devm_kasprintf() returned value
CVE-2024-50069 pinctrl: apple: check devm_kasprintf() returned value
CVE-2024-50068 mm/damon/tests/sysfs-kunit.h: fix memory leak in damon_sysfs_test_add_targets()

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-50078

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