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CVE-2024-56700— media: wl128x: Fix atomicity violation in fmc_send_cmd()

EPSS 0.01% · P3

Affected Version Matrix 20

VendorProductVersion RangeStatus
LinuxLinuxe8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6< d16109c9fdc1b8cea4fe63b42e06e926c3f68990affected
e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6< 3c818ad07e964bca3d27adac1e1f50e1e3c9180eaffected
e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6< d7408a052aa1b4f6fb6f1c7a8877b84017a07ac9affected
e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6< ed228b74d8a500380150965d5becabf9a1e33141affected
e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6< 372dc9509122e5d45d4c12978e31c3c7d00aaca4affected
e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6< 378ce4e08ca2b1ac7bbf1d57b68643ca4226c5f8affected
e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6< 2e63c908de357048180516b84740ed62dac0b269affected
e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6< 80a3b2ee01eecf22dfa06968b3cde92c691dea10affected
… +12 more rows
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I. Basic Information for CVE-2024-56700

Vulnerability Information
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Vulnerability Title
media: wl128x: Fix atomicity violation in fmc_send_cmd()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: wl128x: Fix atomicity violation in fmc_send_cmd() Atomicity violation occurs when the fmc_send_cmd() function is executed simultaneously with the modification of the fmdev->resp_skb value. Consider a scenario where, after passing the validity check within the function, a non-null fmdev->resp_skb variable is assigned a null value. This results in an invalid fmdev->resp_skb variable passing the validity check. As seen in the later part of the function, skb = fmdev->resp_skb; when the invalid fmdev->resp_skb passes the check, a null pointer dereference error may occur at line 478, evt_hdr = (void *)skb->data; To address this issue, it is recommended to include the validity check of fmdev->resp_skb within the locked section of the function. This modification ensures that the value of fmdev->resp_skb does not change during the validation process, thereby maintaining its validity. This possible bug is found by an experimental static analysis tool developed by our team. This tool analyzes the locking APIs to extract function pairs that can be concurrently executed, and then analyzes the instructions in the paired functions to identify possible concurrency bugs including data races and atomicity violations.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6 ~ d16109c9fdc1b8cea4fe63b42e06e926c3f68990 -
LinuxLinux 2.6.39 -

II. Public POCs for CVE-2024-56700

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III. Intelligence Information for CVE-2024-56700

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Same Patch Batch · Linux · 2024-12-28 · 32 CVEs total

CVE-2024-56693brd: defer automatic disk creation until module initialization succeeds
CVE-2024-56708EDAC/igen6: Avoid segmentation fault on module unload
CVE-2024-56707octeontx2-pf: handle otx2_mbox_get_rsp errors in otx2_dmac_flt.c
CVE-2024-56705media: atomisp: Add check for rgby_data memory allocation failure
CVE-2024-56706s390/cpum_sf: Fix and protect memory allocation of SDBs with mutex
CVE-2024-567049p/xen: fix release of IRQ
CVE-2024-56703ipv6: Fix soft lockups in fib6_select_path under high next hop churn
CVE-2024-56701powerpc/pseries: Fix dtl_access_lock to be a rw_semaphore
CVE-2024-56702bpf: Mark raw_tp arguments with PTR_MAYBE_NULL
CVE-2024-56699s390/pci: Fix potential double remove of hotplug slot
CVE-2024-56698usb: dwc3: gadget: Fix looping of queued SG entries
CVE-2024-56697drm/amdgpu: Fix the memory allocation issue in amdgpu_discovery_get_nps_info()
CVE-2024-56696ALSA: core: Fix possible NULL dereference caused by kunit_kzalloc()
CVE-2024-56694bpf: fix recursive lock when verdict program return SK_PASS
CVE-2024-56695drm/amdkfd: Use dynamic allocation for CU occupancy array in 'kfd_get_cu_occupancy()'
CVE-2024-56692f2fs: fix to do sanity check on node blkaddr in truncate_node()
CVE-2024-56676thermal: testing: Initialize some variables annoteded with _free()
CVE-2024-56691mfd: intel_soc_pmic_bxtwc: Use IRQ domain for USB Type-C device
CVE-2024-56689PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks 'mmio'
CVE-2024-56690crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY

Showing top 20 of 32 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-56700

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