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CVE-2023-53095— drm/ttm: Fix a NULL pointer dereference

EPSS 0.05% · P15
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I. Basic Information for CVE-2023-53095

Vulnerability Information
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Vulnerability Title
drm/ttm: Fix a NULL pointer dereference
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Fix a NULL pointer dereference The LRU mechanism may look up a resource in the process of being removed from an object. The locking rules here are a bit unclear but it looks currently like res->bo assignment is protected by the LRU lock, whereas bo->resource is protected by the object lock, while *clearing* of bo->resource is also protected by the LRU lock. This means that if we check that bo->resource points to the LRU resource under the LRU lock we should be safe. So perform that check before deciding to swap out a bo. That avoids dereferencing a NULL bo->resource in ttm_bo_swapout().
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ttm_bo_swapout可能解引用空指针。
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 6a9b028994025f5033f10d1da30b29dfdc713384 ~ 9ba1720f6c4a0f13c3f3cb5c28132ee75555d04f -
LinuxLinux 5.19 -

II. Public POCs for CVE-2023-53095

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III. Intelligence Information for CVE-2023-53095

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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-2023-53090drm/amdkfd: Fix an illegal memory access
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-2023-53091ext4: update s_journal_inum if it changes after journal replay
CVE-2023-53094tty: serial: fsl_lpuart: fix race on RX DMA shutdown
CVE-2023-53089ext4: fix task hung in ext4_xattr_delete_inode

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53095

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