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CVE-2023-53181— dma-buf/dma-resv: Stop leaking on krealloc() failure

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dma_resv_get_fences函数在krealloc失败时未释放先前分配的数组，可能导致内存泄漏。

AI Predicted 4.4 Difficulty: Hard EPSS 0.15% · P5

Possible ATT&CK Techniques 1 AI

T1135 · Network Share Discovery

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux d3c80698c9f58a0683badf78793eebaa0c71afbd< 19e7b9f1f7e1cb92a4cc53b4c064f7fb4b1f1983 affected
d3c80698c9f58a0683badf78793eebaa0c71afbd< 819656cc03dec7f7f7800274dfbc8eb49f888e9f affected
d3c80698c9f58a0683badf78793eebaa0c71afbd< 05abb3be91d8788328231ee02973ab3d47f5e3d2 affected
5.16 affected
< 5.16 unaffected
6.1.42≤ 6.1.* unaffected
6.4.7≤ 6.4.* unaffected
6.5≤ * unaffected
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I. Basic Information for CVE-2023-53181

Vulnerability Information
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Vulnerability Title
dma-buf/dma-resv: Stop leaking on krealloc() failure
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: dma-buf/dma-resv: Stop leaking on krealloc() failure Currently dma_resv_get_fences() will leak the previously allocated array if the fence iteration got restarted and the krealloc_array() fails. Free the old array by hand, and make sure we still clear the returned *fences so the caller won't end up accessing freed memory. Some (but not all) of the callers of dma_resv_get_fences() seem to still trawl through the array even when dma_resv_get_fences() failed. And let's zero out *num_fences as well for good measure.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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dma_resv_get_fences函数在krealloc失败时未释放先前分配的数组，可能导致内存泄漏。
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 d3c80698c9f58a0683badf78793eebaa0c71afbd ~ 19e7b9f1f7e1cb92a4cc53b4c064f7fb4b1f1983 -
Linux Linux 5.16 -

II. Public POCs for CVE-2023-53181

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III. Intelligence Information for CVE-2023-53181

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Same Patch Batch · Linux · 2025-09-15 · 210 CVEs total

CVE-2022-50235 9.8 CRITICAL NFSD: Protect against send buffer overflow in NFSv2 READDIR
CVE-2022-50335 9.8 CRITICAL 9p: set req refcount to zero to avoid uninitialized usage
CVE-2023-53192 9.8 CRITICAL vxlan: Fix nexthop hash size
CVE-2023-53253 8.8 HIGH HID: nvidia-shield: Reference hid_device devm allocation of input_dev name
CVE-2023-53226 8.8 HIGH wifi: mwifiex: Fix OOB and integer underflow when rx packets
CVE-2022-50241 8.8 HIGH NFSD: fix use-after-free on source server when doing inter-server copy
CVE-2023-53194 8.4 HIGH fs/ntfs3: Add length check in indx_get_root
CVE-2023-53213 8.1 HIGH wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()
CVE-2023-53186 8.1 HIGH skbuff: Fix a race between coalescing and releasing SKBs
CVE-2022-50303 7.8 HIGH drm/amdkfd: Fix double release compute pasid
CVE-2023-53254 7.8 HIGH cacheinfo: Fix shared_cpu_map to handle shared caches at different levels
CVE-2023-53252 7.8 HIGH Bluetooth: use RCU for hci_conn_params and iterate safely in hci_sync
CVE-2023-53170 7.8 HIGH net: dsa: Removed unneeded of_node_put in felix_parse_ports_node
CVE-2023-53176 7.8 HIGH serial: 8250: Reinit port->pm on port specific driver unbind
CVE-2023-53178 7.8 HIGH mm: fix zswap writeback race condition
CVE-2023-53179 7.8 HIGH netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c
CVE-2023-53184 7.8 HIGH arm64/sme: Set new vector length before reallocating
CVE-2022-50315 7.8 HIGH ata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTS
CVE-2023-53189 7.8 HIGH ipv6/addrconf: fix a potential refcount underflow for idev
CVE-2023-53216 7.8 HIGH arm64: efi: Make efi_rt_lock a raw_spinlock

Showing top 20 of 210 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53181

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