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CVE-2024-56706— s390/cpum_sf: Fix and protect memory allocation of SDBs with mutex

EPSS 0.01% · P2

Affected Version Matrix 6

VendorProductVersion RangeStatus
LinuxLinux8a6fe8f21ec4f049a7b1fe120ad50a5065a9c7a8< 4b3bdfa89635db6a53e02955548bd07bebcae233affected
8a6fe8f21ec4f049a7b1fe120ad50a5065a9c7a8< f55bd479d8663a4a4e403b3d308d3d1aa33d92dfaffected
6.12affected
< 6.12unaffected
6.12.2≤ 6.12.*unaffected
6.13≤ *unaffected
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I. Basic Information for CVE-2024-56706

Vulnerability Information
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Vulnerability Title
s390/cpum_sf: Fix and protect memory allocation of SDBs with mutex
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: s390/cpum_sf: Fix and protect memory allocation of SDBs with mutex Reservation of the PMU hardware is done at first event creation and is protected by a pair of mutex_lock() and mutex_unlock(). After reservation of the PMU hardware the memory required for the PMUs the event is to be installed on is allocated by allocate_buffers() and alloc_sampling_buffer(). This done outside of the mutex protection. Without mutex protection two or more concurrent invocations of perf_event_init() may run in parallel. This can lead to allocation of Sample Data Blocks (SDBs) multiple times for the same PMU. Prevent this and protect memory allocation of SDBs by mutex.
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s390/cpum_sf子系统中SDB内存分配的互斥锁保护问题。
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 8a6fe8f21ec4f049a7b1fe120ad50a5065a9c7a8 ~ 4b3bdfa89635db6a53e02955548bd07bebcae233 -
LinuxLinux 6.12 -

II. Public POCs for CVE-2024-56706

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III. Intelligence Information for CVE-2024-56706

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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-2024-567049p/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-2024-56700media: wl128x: Fix atomicity violation in fmc_send_cmd()
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-2024-56706

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