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CVE-2022-48887— drm/vmwgfx: Remove rcu locks from user resources

EPSS 0.01% · P2

Affected Version Matrix 6

VendorProductVersion RangeStatus
LinuxLinuxe14c02e6b6990e9f6ee18a214a22ac26bae1b25e< 7ac9578e45b20e3f3c0c8eb71f5417a499a7226aaffected
e14c02e6b6990e9f6ee18a214a22ac26bae1b25e< a309c7194e8a2f8bd4539b9449917913f6c2cd50affected
4.20affected
< 4.20unaffected
6.1.7≤ 6.1.*unaffected
6.2≤ *unaffected
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I. Basic Information for CVE-2022-48887

Vulnerability Information
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Vulnerability Title
drm/vmwgfx: Remove rcu locks from user resources
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Remove rcu locks from user resources User resource lookups used rcu to avoid two extra atomics. Unfortunately the rcu paths were buggy and it was easy to make the driver crash by submitting command buffers from two different threads. Because the lookups never show up in performance profiles replace them with a regular spin lock which fixes the races in accesses to those shared resources. Fixes kernel oops'es in IGT's vmwgfx execution_buffer stress test and seen crashes with apps using shared resources.
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 drm/vmwgfx 组件在用户资源中移除了RCU锁。
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 e14c02e6b6990e9f6ee18a214a22ac26bae1b25e ~ 7ac9578e45b20e3f3c0c8eb71f5417a499a7226a -
LinuxLinux 4.20 -

II. Public POCs for CVE-2022-48887

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III. Intelligence Information for CVE-2022-48887

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Same Patch Batch · Linux · 2024-08-21 · 69 CVEs total

CVE-2022-48876wifi: mac80211: fix initialization of rx->link and rx->link_sta
CVE-2024-43874crypto: ccp - Fix null pointer dereference in __sev_snp_shutdown_locked
CVE-2024-43873vhost/vsock: always initialize seqpacket_allow
CVE-2024-43875PCI: endpoint: Clean up error handling in vpci_scan_bus()
CVE-2022-48870tty: fix possible null-ptr-defer in spk_ttyio_release
CVE-2022-48871tty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer
CVE-2022-48872misc: fastrpc: Fix use-after-free race condition for maps
CVE-2022-48873misc: fastrpc: Don't remove map on creater_process and device_release
CVE-2022-48874misc: fastrpc: Fix use-after-free and race in fastrpc_map_find
CVE-2022-48875wifi: mac80211: sdata can be NULL during AMPDU start
CVE-2022-48869USB: gadgetfs: Fix race between mounting and unmounting
CVE-2022-48877f2fs: let's avoid panic if extent_tree is not created
CVE-2022-48878Bluetooth: hci_qca: Fix driver shutdown on closed serdev
CVE-2022-48879efi: fix NULL-deref in init error path
CVE-2022-48880platform/surface: aggregator: Add missing call to ssam_request_sync_free()
CVE-2022-48881platform/x86/amd: Fix refcount leak in amd_pmc_probe
CVE-2022-48882net/mlx5e: Fix macsec possible null dereference when updating MAC security entity (SecY)
CVE-2022-48883net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent
CVE-2022-48884net/mlx5: Fix command stats access after free
CVE-2022-48885ice: Fix potential memory leak in ice_gnss_tty_write()

Showing top 20 of 69 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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