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CVE-2024-56745— PCI: Fix reset_method_store() memory leak

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nfs/blocklayout模块中未正确处理无效块设备的注销，导致空指针取消引用。

AI Predicted 5.3 Difficulty: Theoretical EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1195 · Supply Chain Compromise

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux d88f521da3efd698e36d0d504a2abba6ac4f5ef8< 403efb4457c0c8f8f51e904cc57d39193780c6bd affected
d88f521da3efd698e36d0d504a2abba6ac4f5ef8< 931d07ccffcc3614f20aaf602b31e89754e21c59 affected
d88f521da3efd698e36d0d504a2abba6ac4f5ef8< 8e098baf6bc3f3a6aefc383509aba07e202f7ee0 affected
d88f521da3efd698e36d0d504a2abba6ac4f5ef8< 543d0eb40e45c6a51f1bff02f417b602e54472d5 affected
d88f521da3efd698e36d0d504a2abba6ac4f5ef8< fe6fae61f3b993160aef5fe2b7141a83872c144f affected
d88f521da3efd698e36d0d504a2abba6ac4f5ef8< 2985b1844f3f3447f2d938eff1ef6762592065a5 affected
5.15 affected
< 5.15 unaffected
… +6 more rows
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I. Basic Information for CVE-2024-56745

Vulnerability Information
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Vulnerability Title
PCI: Fix reset_method_store() memory leak
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: PCI: Fix reset_method_store() memory leak In reset_method_store(), a string is allocated via kstrndup() and assigned to the local "options". options is then used in with strsep() to find spaces: while ((name = strsep(&options, " ")) != NULL) { If there are no remaining spaces, then options is set to NULL by strsep(), so the subsequent kfree(options) doesn't free the memory allocated via kstrndup(). Fix by using a separate tmp_options to iterate with strsep() so options is preserved.
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nfs/blocklayout模块中未正确处理无效块设备的注销，导致空指针取消引用。
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 d88f521da3efd698e36d0d504a2abba6ac4f5ef8 ~ 403efb4457c0c8f8f51e904cc57d39193780c6bd -
Linux Linux 5.15 -

II. Public POCs for CVE-2024-56745

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III. Intelligence Information for CVE-2024-56745

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Patches & Fixes for CVE-2024-56745 (6)

Same Patch Batch · Linux · 2024-12-29 · 39 CVEs total

CVE-2024-56719 10.0 CRITICAL net: stmmac: fix TSO DMA API usage causing oops
CVE-2024-56718 9.8 CRITICAL net/smc: protect link down work from execute after lgr freed
CVE-2024-56720 7.8 HIGH bpf, sockmap: Several fixes to bpf_msg_pop_data
CVE-2024-56740 7.8 HIGH nfs/localio: must clear res.replen in nfs_local_read_done
CVE-2024-56709 7.8 HIGH io_uring: check if iowq is killed before queuing
CVE-2024-56715 7.8 HIGH ionic: Fix netdev notifier unregister on failure
CVE-2024-56717 7.5 HIGH net: mscc: ocelot: fix incorrect IFH SRC_PORT field in ocelot_ifh_set_basic()
CVE-2024-56749 7.5 HIGH dlm: fix dlm_recover_members refcount on error
CVE-2024-56721 7.1 HIGH x86/CPU/AMD: Terminate the erratum_1386_microcode array
CVE-2024-56756 nvme-pci: fix freeing of the HMB descriptor table
CVE-2024-56742 vfio/mlx5: Fix an unwind issue in mlx5vf_add_migration_pages()
CVE-2024-56743 nfs_common: must not hold RCU while calling nfsd_file_put_local
CVE-2024-56755 netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
CVE-2024-56744 f2fs: fix to avoid potential deadlock in f2fs_record_stop_reason()
CVE-2024-56746 fbdev: sh7760fb: Fix a possible memory leak in sh7760fb_alloc_mem()
CVE-2024-56748 scsi: qedf: Fix a possible memory leak in qedf_alloc_and_init_sb()
CVE-2024-56747 scsi: qedi: Fix a possible memory leak in qedi_alloc_and_init_sb()
CVE-2024-56750 erofs: fix blksize < PAGE_SIZE for file-backed mounts
CVE-2024-56727 octeontx2-pf: handle otx2_mbox_get_rsp errors in otx2_flows.c
CVE-2024-56754 crypto: caam - Fix the pointer passed to caam_qi_shutdown()

Showing top 20 of 39 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-56745

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