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CVE-2024-53091— bpf: Add sk_is_inet and IS_ICSK check in tls_sw_has_ctx_tx/rx

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tls_get_ctx可能会返回无效的指针。

CVSS 7.8 · High EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 94531cfcbe79c3598acf96806627b2137ca32eb9< a078a480ff3f43d74d8a024ae10c3c7daf6db149 affected
94531cfcbe79c3598acf96806627b2137ca32eb9< 6781cfa93a6a1b7f5be6819a5a2dd8f30f47ca26 affected
94531cfcbe79c3598acf96806627b2137ca32eb9< 44d0469f79bd3d0b3433732877358df7dc6b17b1 affected
5.15 affected
< 5.15 unaffected
6.6.62≤ 6.6.* unaffected
6.11.9≤ 6.11.* unaffected
6.12≤ * unaffected
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I. Basic Information for CVE-2024-53091

Vulnerability Information
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Vulnerability Title
bpf: Add sk_is_inet and IS_ICSK check in tls_sw_has_ctx_tx/rx
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Add sk_is_inet and IS_ICSK check in tls_sw_has_ctx_tx/rx As the introduction of the support for vsock and unix sockets in sockmap, tls_sw_has_ctx_tx/rx cannot presume the socket passed in must be IS_ICSK. vsock and af_unix sockets have vsock_sock and unix_sock instead of inet_connection_sock. For these sockets, tls_get_ctx may return an invalid pointer and cause page fault in function tls_sw_ctx_rx. BUG: unable to handle page fault for address: 0000000000040030 Workqueue: vsock-loopback vsock_loopback_work RIP: 0010:sk_psock_strp_data_ready+0x23/0x60 Call Trace: ? __die+0x81/0xc3 ? no_context+0x194/0x350 ? do_page_fault+0x30/0x110 ? async_page_fault+0x3e/0x50 ? sk_psock_strp_data_ready+0x23/0x60 virtio_transport_recv_pkt+0x750/0x800 ? update_load_avg+0x7e/0x620 vsock_loopback_work+0xd0/0x100 process_one_work+0x1a7/0x360 worker_thread+0x30/0x390 ? create_worker+0x1a0/0x1a0 kthread+0x112/0x130 ? __kthread_cancel_work+0x40/0x40 ret_from_fork+0x1f/0x40 v2: - Add IS_ICSK check v3: - Update the commits in Fixes
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tls_get_ctx可能会返回无效的指针。
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 94531cfcbe79c3598acf96806627b2137ca32eb9 ~ a078a480ff3f43d74d8a024ae10c3c7daf6db149 -
Linux Linux 5.15 -

II. Public POCs for CVE-2024-53091

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III. Intelligence Information for CVE-2024-53091

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Patches & Fixes for CVE-2024-53091 (1)

Same Patch Batch · Linux · 2024-11-21 · 7 CVEs total

CVE-2024-53095 9.8 CRITICAL smb: client: Fix use-after-free of network namespace.
CVE-2024-53094 9.8 CRITICAL RDMA/siw: Add sendpage_ok() check to disable MSG_SPLICE_PAGES
CVE-2024-53092 8.4 HIGH virtio_pci: Fix admin vq cleanup by using correct info pointer
CVE-2024-53090 7.5 HIGH afs: Fix lock recursion
CVE-2024-53093 7.5 HIGH nvme-multipath: defer partition scanning
CVE-2024-53089 LoongArch: KVM: Mark hrtimer to expire in hard interrupt context

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-53091

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