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CVE-2022-49336— drm/etnaviv: check for reaped mapping in etnaviv_iommu_unmap_gem

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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etnaviv_iommu_unmap_gem未检查映射是否已被回收，可能导致数据结构损坏。

CVSS 7.8 · High EPSS 0.28% · P20

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux a8c21a5451d831e67b7a6fb910f9ca8bc7b43554< 19323b3671a85788569d15685c8f83a05ec48cbb affected
a8c21a5451d831e67b7a6fb910f9ca8bc7b43554< 436cff507f2a41230baacc3e2ef1d3b2d2653f40 affected
a8c21a5451d831e67b7a6fb910f9ca8bc7b43554< 03bd455a79f69d97fee3e3b212ab754442f10e5c affected
a8c21a5451d831e67b7a6fb910f9ca8bc7b43554< 461c0fdf9434188875da9f10cfc86065866bb797 affected
a8c21a5451d831e67b7a6fb910f9ca8bc7b43554< 64f4edec081cb7c97c5e928529d0e1b0dbbffb83 affected
a8c21a5451d831e67b7a6fb910f9ca8bc7b43554< e168c25526cd0368af098095c2ded4a008007e1b affected
4.5 affected
< 4.5 unaffected
… +6 more rows
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I. Basic Information for CVE-2022-49336

Vulnerability Information
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Vulnerability Title
drm/etnaviv: check for reaped mapping in etnaviv_iommu_unmap_gem
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/etnaviv: check for reaped mapping in etnaviv_iommu_unmap_gem When the mapping is already reaped the unmap must be a no-op, as we would otherwise try to remove the mapping twice, corrupting the involved data structures.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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etnaviv_iommu_unmap_gem未检查映射是否已被回收，可能导致数据结构损坏。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux a8c21a5451d831e67b7a6fb910f9ca8bc7b43554 ~ 19323b3671a85788569d15685c8f83a05ec48cbb -
Linux Linux 4.5 -

II. Public POCs for CVE-2022-49336

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III. Intelligence Information for CVE-2022-49336

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Patches & Fixes for CVE-2022-49336 (6)

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

CVE-2022-49280 9.8 CRITICAL NFSD: prevent underflow in nfssvc_decode_writeargs()
CVE-2022-49362 9.8 CRITICAL NFSD: Fix potential use-after-free in nfsd_file_put()
CVE-2022-49407 9.8 CRITICAL dlm: fix plock invalid read
CVE-2022-49561 9.8 CRITICAL netfilter: conntrack: re-fetch conntrack after insertion
CVE-2022-49356 9.8 CRITICAL SUNRPC: Trap RDMA segment overflows
CVE-2022-49418 9.8 CRITICAL NFSv4: Fix free of uninitialized nfs4_label on referral lookup.
CVE-2022-49260 9.8 CRITICAL crypto: hisilicon/sec - fix the aead software fallback for engine
CVE-2022-49094 9.8 CRITICAL net/tls: fix slab-out-of-bounds bug in decrypt_internal
CVE-2022-49093 9.8 CRITICAL skbuff: fix coalescing for page_pool fragment recycling
CVE-2022-49201 9.8 CRITICAL ibmvnic: fix race between xmit and reset
CVE-2022-49194 9.8 CRITICAL net: bcmgenet: Use stronger register read/writes to assure ordering
CVE-2022-49149 9.8 CRITICAL rxrpc: Fix call timer start racing with call destruction
CVE-2022-49058 9.1 CRITICAL cifs: potential buffer overflow in handling symlinks
CVE-2022-49519 8.8 HIGH ath10k: skip ath10k_halt during suspend for driver state RESTARTING
CVE-2022-49500 8.8 HIGH wl1251: dynamically allocate memory used for DMA
CVE-2022-49470 8.8 HIGH Bluetooth: btmtksdio: fix use-after-free at btmtksdio_recv_event
CVE-2022-49328 8.8 HIGH mt76: fix use-after-free by removing a non-RCU wcid pointer
CVE-2022-49479 8.8 HIGH mt76: fix tx status related use-after-free race on station removal
CVE-2022-49535 8.8 HIGH scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI
CVE-2022-49114 8.8 HIGH scsi: libfc: Fix use after free in fc_exch_abts_resp()

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-2022-49336

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