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CVE-2022-49376— scsi: sd: Fix potential NULL pointer dereference

AI Predicted 5.3 Difficulty: Easy EPSS 0.01% · P3

Affected Version Matrix 12

VendorProductVersion RangeStatus
LinuxLinux89d9475610771b5e5fe1879075f0fc9ba6e3755f< c1f0187025905e9981000d44a92e159468b561a8affected
89d9475610771b5e5fe1879075f0fc9ba6e3755f< 0fcb0b131cc90c8f523a293d84c58d0c7273c96faffected
89d9475610771b5e5fe1879075f0fc9ba6e3755f< 78f8e96df06e2d04d82d4071c299b59d28744f47affected
89d9475610771b5e5fe1879075f0fc9ba6e3755f< 3733439593ad12f7b54ae35c273ea6f15d692de3affected
89d9475610771b5e5fe1879075f0fc9ba6e3755f< 05fbde3a77a4f1d62e4c4428f384288c1f1a0be5affected
4.10affected
< 4.10unaffected
5.10.122≤ 5.10.*unaffected
… +4 more rows
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I. Basic Information for CVE-2022-49376

Vulnerability Information
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Vulnerability Title
scsi: sd: Fix potential NULL pointer dereference
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: sd: Fix potential NULL pointer dereference If sd_probe() sees an early error before sdkp->device is initialized, sd_zbc_release_disk() is called. This causes a NULL pointer dereference when sd_is_zoned() is called inside that function. Avoid this by removing the call to sd_zbc_release_disk() in sd_probe() error path. This change is safe and does not result in zone information memory leakage because the zone information for a zoned disk is allocated only when sd_revalidate_disk() is called, at which point sdkp->disk_dev is fully set, resulting in sd_disk_release() being called when needed to cleanup a disk zone information using sd_zbc_release_disk().
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sd_probe函数在sdkp->device未初始化时调用sd_zbc_release_disk，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 89d9475610771b5e5fe1879075f0fc9ba6e3755f ~ c1f0187025905e9981000d44a92e159468b561a8 -
LinuxLinux 4.10 -

II. Public POCs for CVE-2022-49376

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III. Intelligence Information for CVE-2022-49376

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Patches & Fixes for CVE-2022-49376 (5)

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

CVE-2022-49498ALSA: pcm: Check for null pointer of pointer substream before dereferencing it
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-2022-49496media: mediatek: vcodec: prevent kernel crash when rmmod mtk-vcodec-dec.ko
CVE-2022-49502media: rga: fix possible memory leak in rga_probe
CVE-2022-49507regulator: da9121: Fix uninit-value in da9121_assign_chip_model()
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-2022-49501usbnet: Run unregister_netdev() before unbind() again
CVE-2022-49500wl1251: dynamically allocate memory used for DMA

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-2022-49376

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