CVE-2023-53315

MEDIUM EPSS 4.1%
Published Sep 16, 20259mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 16, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: Fix SKB corruption in REO destination ring While running traffics for a long time, randomly an RX descriptor filled with value "0" from REO destination ring is received. This descriptor which is invalid causes the wrong SKB (SKB stored in the IDR lookup with buffer id "0") to be fetched which in turn causes SKB memory corruption issue and the same leads to crash after some time. Changed the start id for idr allocation to "1" and the buffer id "0" is reserved for error validation. Introduced Sanity check to validate the descriptor, before processing the SKB. Crash Signature : Unable to handle kernel paging request at virtual address 3f004900 PC points to "b15_dma_inv_range+0x30/0x50" LR points to "dma_cache_maint_page+0x8c/0x128". The Backtrace obtained is as follows: [<8031716c>] (b15_dma_inv_range) from [<80313a4c>] (dma_cache_maint_page+0x8c/0x128) [<80313a4c>] (dma_cache_maint_page) from [<80313b90>] (__dma_page_dev_to_cpu+0x28/0xcc) [<80313b90>] (__dma_page_dev_to_cpu) from [<7fb5dd68>] (ath11k_dp_process_rx+0x1e8/0x4a4 [ath11k]) [<7fb5dd68>] (ath11k_dp_process_rx [ath11k]) from [<7fb53c20>] (ath11k_dp_service_srng+0xb0/0x2ac [ath11k]) [<7fb53c20>] (ath11k_dp_service_srng [ath11k]) from [<7f67bba4>] (ath11k_pci_ext_grp_napi_poll+0x1c/0x78 [ath11k_pci]) [<7f67bba4>] (ath11k_pci_ext_grp_napi_poll [ath11k_pci]) from [<807d5cf4>] (__napi_poll+0x28/0xb8) [<807d5cf4>] (__napi_poll) from [<807d5f28>] (net_rx_action+0xf0/0x280) [<807d5f28>] (net_rx_action) from [<80302148>] (__do_softirq+0xd0/0x280) [<80302148>] (__do_softirq) from [<80320408>] (irq_exit+0x74/0xd4) [<80320408>] (irq_exit) from [<803638a4>] (__handle_domain_irq+0x90/0xb4) [<803638a4>] (__handle_domain_irq) from [<805bedec>] (gic_handle_irq+0x58/0x90) [<805bedec>] (gic_handle_irq) from [<80301a78>] (__irq_svc+0x58/0x8c) Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.6  –  <5.10.181
linuxlinux_kernel*≥5.11  –  <5.15.113
linuxlinux_kernel*≥5.16  –  <6.1.30
linuxlinux_kernel*≥6.2  –  <6.3.4

References 5

  • git.kernel.org https://git.kernel.org/stable/c/068fd06148fbf0af95bb08dc77cff34ee679fdbc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3d3f8fe01a01d94a17fe1ae0d2e894049a972717
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/67459491f78146bcf7d93596e5b709d063dff5d8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/866921dc06b94df91acfcf9359b57da943ed99b3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f9fff67d2d7ca6fa8066132003a3deef654c55b1
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/068fd06148fbf0af95bb08dc77cff34ee679fdbc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3d3f8fe01a01d94a17fe1ae0d2e894049a972717
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/67459491f78146bcf7d93596e5b709d063dff5d8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/866921dc06b94df91acfcf9359b57da943ed99b3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f9fff67d2d7ca6fa8066132003a3deef654c55b1
    Patch