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CVE-2024-53090— afs: Fix lock recursion

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afs_wake_up_async_call函数可能导致锁递归。

CVSS 7.5 · High EPSS 0.46% · P39

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 20acbd9a7aeee0b0af7107f3de791a52c949f3ac< 9ada9ff6339d49df2260bb876ccf895d88928f81 affected
20acbd9a7aeee0b0af7107f3de791a52c949f3ac< d7cbf81df996b1eae2dee8deb6df08e2eba78661 affected
20acbd9a7aeee0b0af7107f3de791a52c949f3ac< 610a79ffea02102899a1373fe226d949944a7ed6 affected
4.15 affected
< 4.15 unaffected
6.6.160≤ 6.6.* unaffected
6.11.9≤ 6.11.* unaffected
6.12≤ * unaffected
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I. Basic Information for CVE-2024-53090

Vulnerability Information
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Vulnerability Title
afs: Fix lock recursion
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: afs: Fix lock recursion afs_wake_up_async_call() can incur lock recursion. The problem is that it is called from AF_RXRPC whilst holding the ->notify_lock, but it tries to take a ref on the afs_call struct in order to pass it to a work queue - but if the afs_call is already queued, we then have an extraneous ref that must be put... calling afs_put_call() may call back down into AF_RXRPC through rxrpc_kernel_shutdown_call(), however, which might try taking the ->notify_lock again. This case isn't very common, however, so defer it to a workqueue. The oops looks something like: BUG: spinlock recursion on CPU#0, krxrpcio/7001/1646 lock: 0xffff888141399b30, .magic: dead4ead, .owner: krxrpcio/7001/1646, .owner_cpu: 0 CPU: 0 UID: 0 PID: 1646 Comm: krxrpcio/7001 Not tainted 6.12.0-rc2-build3+ #4351 Hardware name: ASUS All Series/H97-PLUS, BIOS 2306 10/09/2014 Call Trace: <TASK> dump_stack_lvl+0x47/0x70 do_raw_spin_lock+0x3c/0x90 rxrpc_kernel_shutdown_call+0x83/0xb0 afs_put_call+0xd7/0x180 rxrpc_notify_socket+0xa0/0x190 rxrpc_input_split_jumbo+0x198/0x1d0 rxrpc_input_data+0x14b/0x1e0 ? rxrpc_input_call_packet+0xc2/0x1f0 rxrpc_input_call_event+0xad/0x6b0 rxrpc_input_packet_on_conn+0x1e1/0x210 rxrpc_input_packet+0x3f2/0x4d0 rxrpc_io_thread+0x243/0x410 ? __pfx_rxrpc_io_thread+0x10/0x10 kthread+0xcf/0xe0 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x24/0x40 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK>
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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afs_wake_up_async_call函数可能导致锁递归。
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 20acbd9a7aeee0b0af7107f3de791a52c949f3ac ~ 9ada9ff6339d49df2260bb876ccf895d88928f81 -
Linux Linux 4.15 -

II. Public POCs for CVE-2024-53090

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III. Intelligence Information for CVE-2024-53090

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Patches & Fixes for CVE-2024-53090 (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-2024-53091 7.8 HIGH bpf: Add sk_is_inet and IS_ICSK check in tls_sw_has_ctx_tx/rx
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-2024-53090

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