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CVE-2022-49731— ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()

EPSS 0.01% · P1

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinuxf5cda257296fbd3683b1f568f2d94d3caaacf74d< ca4693e6e06e4fd2b240c0fec47aa2498c94848eaffected
f5cda257296fbd3683b1f568f2d94d3caaacf74d< 1ac5efee33f29e704226506d429b84575a5d66f8affected
f5cda257296fbd3683b1f568f2d94d3caaacf74d< a810bd5af06977a847d1f202b22d7defd5c62497affected
f5cda257296fbd3683b1f568f2d94d3caaacf74d< 253334f84c81bc6a43af489f108c0bddad989eefaffected
f5cda257296fbd3683b1f568f2d94d3caaacf74d< 36cd19e7d4e5571d77a2ed20c5b6ef50cf57734aaffected
f5cda257296fbd3683b1f568f2d94d3caaacf74d< ff128fbea720bf763fa345680dda5f050bc24a47affected
f5cda257296fbd3683b1f568f2d94d3caaacf74d< 07cbdb4807d369fbda73062a91b570c4dc5ec429affected
f5cda257296fbd3683b1f568f2d94d3caaacf74d< bf476fe22aa1851bab4728e0c49025a6a0bea307affected
… +10 more rows
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I. Basic Information for CVE-2022-49731

Vulnerability Information
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Vulnerability Title
ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo() In an unlikely (and probably wrong?) case that the 'ppi' parameter of ata_host_alloc_pinfo() points to an array starting with a NULL pointer, there's going to be a kernel oops as the 'pi' local variable won't get reassigned from the initial value of NULL. Initialize 'pi' instead to '&ata_dummy_port_info' to fix the possible kernel oops for good... Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.
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ata_host_alloc_pinfo函数中未正确处理空指针。
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 f5cda257296fbd3683b1f568f2d94d3caaacf74d ~ ca4693e6e06e4fd2b240c0fec47aa2498c94848e -
LinuxLinux 2.6.22 -

II. Public POCs for CVE-2022-49731

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III. Intelligence Information for CVE-2022-49731

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Same Patch Batch · Linux · 2025-02-26 · 706 CVEs total

CVE-2022-49496media: mediatek: vcodec: prevent kernel crash when rmmod mtk-vcodec-dec.ko
CVE-2022-49487mtd: rawnand: intel: fix possible null-ptr-deref in ebu_nand_probe()
CVE-2022-49486ASoC: fsl: Fix refcount leak in imx_sgtl5000_probe
CVE-2022-49488drm/msm/mdp5: Return error code in mdp5_mixer_release when deadlock is detected
CVE-2022-49489drm/msm/disp/dpu1: set vbif hw config to NULL to avoid use after memory free during pm run
CVE-2022-49490drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected
CVE-2022-49491drm/rockchip: vop: fix possible null-ptr-deref in vop_bind()
CVE-2022-49492nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags
CVE-2022-49493ASoC: rt5645: Fix errorenous cleanup order
CVE-2022-49494mtd: rawnand: cadence: fix possible null-ptr-deref in cadence_nand_dt_probe()
CVE-2022-49495drm/msm/hdmi: check return value after calling platform_get_resource_byname()
CVE-2022-49497net: remove two BUG() from skb_checksum_help()
CVE-2022-49503ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix
CVE-2022-49508HID: elan: Fix potential double free in elan_input_configured
CVE-2022-49506drm/mediatek: Add vblank register/unregister callback functions
CVE-2022-49504scsi: lpfc: Inhibit aborts if external loopback plug is inserted
CVE-2022-49505NFC: NULL out the dev->rfkill to prevent UAF
CVE-2022-49502media: rga: fix possible memory leak in rga_probe
CVE-2022-49499drm/msm: Fix null pointer dereferences without iommu
CVE-2022-49498ALSA: pcm: Check for null pointer of pointer substream before dereferencing it

Showing top 20 of 706 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-49731

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