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CVE-2024-38662— bpf: Allow delete from sockmap/sockhash only if update is allowed

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bpf模块存在逻辑漏洞。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection

Affected Version Matrix 22

VendorProduct Version RangeStatus
Linux Linux dd54b48db0c822ae7b520bc80751f0a0a173ef75< 29467edc23818dc5a33042ffb4920b49b090e63d affected
d1e73fb19a4c872d7a399ad3c66e8ca30e0875ec< 11e8ecc5b86037fec43d07b1c162e233e131b1d9 affected
a44770fed86515eedb5a7c00b787f847ebb134a5< 6693b172f008846811f48a099f33effc26068e1e affected
668b3074aa14829e2ac2759799537a93b60fef86< 000a65bf1dc04fb2b65e2abf116f0bc0fc2ee7b1 affected
ff91059932401894e6c86341915615c5eb0eca48< b81e1c5a3c70398cf76631ede63a03616ed1ba3c affected
ff91059932401894e6c86341915615c5eb0eca48< 98e948fb60d41447fd8d2d0c3b8637fc6b6dc26d affected
f7990498b05ac41f7d6a190dc0418ef1d21bf058 affected
6af057ccdd8e7619960aca1f0428339f213b31cd affected
… +14 more rows
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I. Basic Information for CVE-2024-38662

Vulnerability Information
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Vulnerability Title
bpf: Allow delete from sockmap/sockhash only if update is allowed
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Allow delete from sockmap/sockhash only if update is allowed We have seen an influx of syzkaller reports where a BPF program attached to a tracepoint triggers a locking rule violation by performing a map_delete on a sockmap/sockhash. We don't intend to support this artificial use scenario. Extend the existing verifier allowed-program-type check for updating sockmap/sockhash to also cover deleting from a map. From now on only BPF programs which were previously allowed to update sockmap/sockhash can delete from these map types.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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bpf模块存在逻辑漏洞。
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 dd54b48db0c822ae7b520bc80751f0a0a173ef75 ~ 29467edc23818dc5a33042ffb4920b49b090e63d -
Linux Linux 6.9 -

II. Public POCs for CVE-2024-38662

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III. Intelligence Information for CVE-2024-38662

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Other References for CVE-2024-38662 (6)

Same Patch Batch · Linux · 2024-06-21 · 40 CVEs total

CVE-2024-36288 9.8 CRITICAL SUNRPC: Fix loop termination condition in gss_free_in_token_pages()
CVE-2024-38381 8.8 HIGH nfc: nci: Fix uninit-value in nci_rx_work
CVE-2024-38628 7.8 HIGH usb: gadget: u_audio: Fix race condition use of controls after free during gadget unbind.
CVE-2024-38626 7.8 HIGH fuse: clear FR_SENT when re-adding requests into pending list
CVE-2024-38623 7.8 HIGH fs/ntfs3: Use variable length array instead of fixed size
CVE-2024-38635 7.8 HIGH soundwire: cadence: fix invalid PDI offset
CVE-2024-38388 7.8 HIGH ALSA: hda/cs_dsp_ctl: Use private_free for control cleanup
CVE-2024-36286 7.8 HIGH netfilter: nfnetlink_queue: acquire rcu_read_lock() in instance_destroy_rcu()
CVE-2024-36477 7.8 HIGH tpm_tis_spi: Account for SPI header when allocating TPM SPI xfer buffer
CVE-2024-33619 7.8 HIGH efi: libstub: only free priv.runtime_map when allocated
CVE-2024-38659 7.3 HIGH enic: Validate length of nl attributes in enic_set_vf_port
CVE-2024-38780 dma-buf/sw-sync: don't enable IRQ from sync_print_obj()
CVE-2024-38637 greybus: lights: check return of get_channel_from_mode
CVE-2024-39277 dma-mapping: benchmark: handle NUMA_NO_NODE correctly
CVE-2024-38636 f2fs: multidev: fix to recognize valid zero block address
CVE-2024-34777 dma-mapping: benchmark: fix node id validation
CVE-2024-38634 serial: max3100: Lock port->lock when calling uart_handle_cts_change()
CVE-2024-38633 serial: max3100: Update uart_driver_registered on driver removal
CVE-2024-38632 vfio/pci: fix potential memory leak in vfio_intx_enable()
CVE-2024-31076 genirq/cpuhotplug, x86/vector: Prevent vector leak during CPU offline

Showing top 20 of 40 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-38662

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