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CVE-2024-56696— ALSA: core: Fix possible NULL dereference caused by kunit_kzalloc()

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ALSA子系统中kunit_kzalloc函数返回空指针导致的空指针取消引用问题。

AI Predicted 4.3 Difficulty: Theoretical EPSS 0.20% · P10

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 3e39acf56ededdebd1033349a16b704839b94b28< f5486bf8abfe778b368d8fd1aa655dc01d0013ca affected
3e39acf56ededdebd1033349a16b704839b94b28< 8bfff486ecc79a72e9380e2d5e0ff234d5542d2f affected
3e39acf56ededdebd1033349a16b704839b94b28< 9ad467a2b2716d4ed12f003b041aa6c776a13ff5 affected
6.9 affected
< 6.9 unaffected
6.11.11≤ 6.11.* unaffected
6.12.2≤ 6.12.* unaffected
6.13≤ * unaffected
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I. Basic Information for CVE-2024-56696

Vulnerability Information
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Vulnerability Title
ALSA: core: Fix possible NULL dereference caused by kunit_kzalloc()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: core: Fix possible NULL dereference caused by kunit_kzalloc() kunit_kzalloc() may return a NULL pointer, dereferencing it without NULL check may lead to NULL dereference. Add NULL checks for all the kunit_kzalloc() in sound_kunit.c
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ALSA子系统中kunit_kzalloc函数返回空指针导致的空指针取消引用问题。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 3e39acf56ededdebd1033349a16b704839b94b28 ~ f5486bf8abfe778b368d8fd1aa655dc01d0013ca -
Linux Linux 6.9 -

II. Public POCs for CVE-2024-56696

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III. Intelligence Information for CVE-2024-56696

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Patches & Fixes for CVE-2024-56696 (3)

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

CVE-2024-56704 8.4 HIGH 9p/xen: fix release of IRQ
CVE-2024-56684 8.4 HIGH mailbox: mtk-cmdq: fix wrong use of sizeof in cmdq_get_clocks()
CVE-2024-56677 7.8 HIGH powerpc/fadump: Move fadump_cma_init to setup_arch() after initmem_init()
CVE-2024-56706 7.8 HIGH s390/cpum_sf: Fix and protect memory allocation of SDBs with mutex
CVE-2024-56692 7.8 HIGH f2fs: fix to do sanity check on node blkaddr in truncate_node()
CVE-2024-56693 7.8 HIGH brd: defer automatic disk creation until module initialization succeeds
CVE-2024-56681 7.8 HIGH crypto: bcm - add error check in the ahash_hmac_init function
CVE-2024-56688 7.5 HIGH sunrpc: clear XPRT_SOCK_UPD_TIMEOUT when reset transport
CVE-2024-56703 7.5 HIGH ipv6: Fix soft lockups in fib6_select_path under high next hop churn
CVE-2024-56694 7.5 HIGH bpf: fix recursive lock when verdict program return SK_PASS
CVE-2024-56708 EDAC/igen6: Avoid segmentation fault on module unload
CVE-2024-56682 irqchip/riscv-aplic: Prevent crash when MSI domain is missing
CVE-2024-56707 octeontx2-pf: handle otx2_mbox_get_rsp errors in otx2_dmac_flt.c
CVE-2024-56705 media: atomisp: Add check for rgby_data memory allocation failure
CVE-2024-56676 thermal: testing: Initialize some variables annoteded with _free()
CVE-2024-56678 powerpc/mm/fault: Fix kfence page fault reporting
CVE-2024-56701 powerpc/pseries: Fix dtl_access_lock to be a rw_semaphore
CVE-2024-56702 bpf: Mark raw_tp arguments with PTR_MAYBE_NULL
CVE-2024-56700 media: wl128x: Fix atomicity violation in fmc_send_cmd()
CVE-2024-56699 s390/pci: Fix potential double remove of hotplug slot

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-2024-56696

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