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CVE-2024-56604— Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc()

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f2fs模块中f2fs_submit_page_bio函数中的空指针取消引用，导致内核崩溃。

CVSS 7.8 · High EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< ac3eaac4cf142a15fe67be747a682b1416efeb6e affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 6021ccc2471b7b95e29b7cfc7938e042bf56e281 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 32df687e129ef0f9afcbcc914f7c32deb28fd481 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 3945c799f12b8d1f49a3b48369ca494d981ac465 affected
2.6.12 affected
< 2.6.12 unaffected
6.1.120≤ 6.1.* unaffected
6.6.66≤ 6.6.* unaffected
… +2 more rows
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I. Basic Information for CVE-2024-56604

Vulnerability Information
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Vulnerability Title
Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc() bt_sock_alloc() attaches allocated sk object to the provided sock object. If rfcomm_dlc_alloc() fails, we release the sk object, but leave the dangling pointer in the sock object, which may cause use-after-free. Fix this by swapping calls to bt_sock_alloc() and rfcomm_dlc_alloc().
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f2fs模块中f2fs_submit_page_bio函数中的空指针取消引用，导致内核崩溃。
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 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ ac3eaac4cf142a15fe67be747a682b1416efeb6e -
Linux Linux 2.6.12 -

II. Public POCs for CVE-2024-56604

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III. Intelligence Information for CVE-2024-56604

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Patches & Fixes for CVE-2024-56604 (4)

Same Patch Batch · Linux · 2024-12-27 · 221 CVEs total

CVE-2024-56640 9.8 CRITICAL net/smc: fix LGR and link use-after-free issue
CVE-2024-56645 9.8 CRITICAL can: j1939: j1939_session_new(): fix skb reference counting
CVE-2024-53169 9.8 CRITICAL nvme-fabrics: fix kernel crash while shutting down controller
CVE-2024-53209 9.8 CRITICAL bnxt_en: Fix receive ring space parameters when XDP is active
CVE-2024-53206 9.8 CRITICAL tcp: Fix use-after-free of nreq in reqsk_timer_handler().
CVE-2024-56656 9.8 CRITICAL bnxt_en: Fix aggregation ID mask to prevent oops on 5760X chips
CVE-2024-53186 9.8 CRITICAL ksmbd: fix use-after-free in SMB request handling
CVE-2024-53176 9.8 CRITICAL smb: During unmount, ensure all cached dir instances drop their dentry
CVE-2024-53177 9.8 CRITICAL smb: prevent use-after-free due to open_cached_dir error paths
CVE-2024-53179 9.8 CRITICAL smb: client: fix use-after-free of signing key
CVE-2024-56591 8.8 HIGH Bluetooth: hci_conn: Use disable_delayed_work_sync
CVE-2024-56626 8.8 HIGH ksmbd: fix Out-of-Bounds Write in ksmbd_vfs_stream_write
CVE-2024-53237 8.8 HIGH Bluetooth: fix use-after-free in device_for_each_child()
CVE-2024-53224 8.8 HIGH RDMA/mlx5: Move events notifier registration to be after device registration
CVE-2024-56651 8.8 HIGH can: hi311x: hi3110_can_ist(): fix potential use-after-free
CVE-2024-56653 8.8 HIGH Bluetooth: btmtk: avoid UAF in btmtk_process_coredump
CVE-2024-56669 8.8 HIGH iommu/vt-d: Remove cache tags before disabling ATS
CVE-2024-56627 8.1 HIGH ksmbd: fix Out-of-Bounds Read in ksmbd_vfs_stream_read
CVE-2024-53232 7.8 HIGH iommu/s390: Implement blocking domain
CVE-2024-56635 7.8 HIGH net: avoid potential UAF in default_operstate()

Showing top 20 of 221 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-56604

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