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CVE-2023-53049— usb: ucsi: Fix NULL pointer deref in ucsi_connector_change()

EPSS 0.06% · P19
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I. Basic Information for CVE-2023-53049

Vulnerability Information
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Vulnerability Title
usb: ucsi: Fix NULL pointer deref in ucsi_connector_change()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: ucsi: Fix NULL pointer deref in ucsi_connector_change() When ucsi_init() fails, ucsi->connector is NULL, yet in case of ucsi_acpi we may still get events which cause the ucs_acpi code to call ucsi_connector_change(), which then derefs the NULL ucsi->connector pointer. Fix this by not setting ucsi->ntfy inside ucsi_init() until ucsi_init() has succeeded, so that ucsi_connector_change() ignores the events because UCSI_ENABLE_NTFY_CONNECTOR_CHANGE is not set in the ntfy mask.
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ucsi_connector_change函数未检查ucsi初始化状态，可能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 bdc62f2bae8fb0e8e99574de5232f0a3c54a27df ~ a6adfe9bbd6ac11e398b54ccd99a0f8eea09f3c0 -
LinuxLinux 5.5 -

II. Public POCs for CVE-2023-53049

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III. Intelligence Information for CVE-2023-53049

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Same Patch Batch · Linux · 2025-05-02 · 107 CVEs total

CVE-2023-53102ice: xsk: disable txq irq before flushing hw
CVE-2023-53115scsi: mpi3mr: Fix memory leaks in mpi3mr_init_ioc()
CVE-2023-53114i40e: Fix kernel crash during reboot when adapter is in recovery mode
CVE-2023-53112drm/i915/sseu: fix max_subslices array-index-out-of-bounds access
CVE-2023-53113wifi: nl80211: fix NULL-ptr deref in offchan check
CVE-2023-53111loop: Fix use-after-free issues
CVE-2023-53109net: tunnels: annotate lockless accesses to dev->needed_headroom
CVE-2023-53110net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler()
CVE-2023-53108net/iucv: Fix size of interrupt data
CVE-2023-53106nfc: st-nci: Fix use after free bug in ndlc_remove due to race condition
CVE-2023-53107veth: Fix use after free in XDP_REDIRECT
CVE-2023-53105net/mlx5e: Fix cleanup null-ptr deref on encap lock
CVE-2023-53103bonding: restore bond's IFF_SLAVE flag if a non-eth dev enslave fails
CVE-2023-53101ext4: zero i_disksize when initializing the bootloader inode
CVE-2023-53091ext4: update s_journal_inum if it changes after journal replay
CVE-2023-53094tty: serial: fsl_lpuart: fix race on RX DMA shutdown
CVE-2023-53092interconnect: exynos: fix node leak in probe PM QoS error path
CVE-2023-53093tracing: Do not let histogram values have some modifiers
CVE-2023-53095drm/ttm: Fix a NULL pointer dereference
CVE-2023-53090drm/amdkfd: Fix an illegal memory access

Showing top 20 of 107 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53049

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