CVE-2023-53822— wifi: ath11k: Ignore frags from uninitialized peer in dp.
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I. Basic Information for CVE-2023-53822
Vulnerability Information
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Vulnerability Title
wifi: ath11k: Ignore frags from uninitialized peer in dp.
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: Ignore frags from uninitialized peer in dp. When max virtual ap interfaces are configured in all the bands with ACS and hostapd restart is done every 60s, a crash is observed at random times. In this certain scenario, a fragmented packet is received for self peer, for which rx_tid and rx_frags are not initialized in datapath. While handling this fragment, crash is observed as the rx_frag list is uninitialised and when we walk in ath11k_dp_rx_h_sort_frags, skb null leads to exception. To address this, before processing received fragments we check dp_setup_done flag is set to ensure that peer has completed its dp peer setup for fragment queue, else ignore processing the fragments. Call trace: ath11k_dp_process_rx_err+0x550/0x1084 [ath11k] ath11k_dp_service_srng+0x70/0x370 [ath11k] 0xffffffc009693a04 __napi_poll+0x30/0xa4 net_rx_action+0x118/0x270 __do_softirq+0x10c/0x244 irq_exit+0x64/0xb4 __handle_domain_irq+0x88/0xac gic_handle_irq+0x74/0xbc el1_irq+0xf0/0x1c0 arch_cpu_idle+0x10/0x18 do_idle+0x104/0x248 cpu_startup_entry+0x20/0x64 rest_init+0xd0/0xdc arch_call_rest_init+0xc/0x14 start_kernel+0x480/0x4b8 Code: f9400281 f94066a2 91405021 b94a0023 (f9406401) Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1
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，该漏洞源于未初始化peer接收碎片包，可能导致空指针异常。
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
II. Public POCs for CVE-2023-53822
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Same Patch Batch · Linux · 2025-12-09 · 152 CVEs total
| CVE-2023-53827 | Bluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp} | |
| CVE-2023-53846 | f2fs: fix to do sanity check on direct node in truncate_dnode() | |
| CVE-2023-53845 | nilfs2: fix infinite loop in nilfs_mdt_get_block() | |
| CVE-2023-53844 | drm/ttm: Don't leak a resource on swapout move error | |
| CVE-2023-53843 | net: openvswitch: reject negative ifindex | |
| CVE-2023-53842 | ASoC: codecs: wcd-mbhc-v2: fix resource leaks on component remove | |
| CVE-2023-53841 | devlink: report devlink_port_type_warn source device | |
| CVE-2023-53840 | usb: early: xhci-dbc: Fix a potential out-of-bound memory access | |
| CVE-2023-53839 | dccp: fix data-race around dp->dccps_mss_cache | |
| CVE-2023-53838 | f2fs: synchronize atomic write aborts | |
| CVE-2023-53837 | drm/msm: fix NULL-deref on snapshot tear down | |
| CVE-2023-53836 | bpf, sockmap: Fix skb refcnt race after locking changes | |
| CVE-2023-53834 | iio: adc: ina2xx: avoid NULL pointer dereference on OF device match | |
| CVE-2023-53833 | drm/i915: Fix NULL ptr deref by checking new_crtc_state | |
| CVE-2023-53832 | md/raid10: fix null-ptr-deref in raid10_sync_request | |
| CVE-2023-53831 | net: read sk->sk_family once in sk_mc_loop() | |
| CVE-2023-53830 | platform/x86: think-lmi: Fix memory leak when showing current settings | |
| CVE-2023-53829 | f2fs: flush inode if atomic file is aborted | |
| CVE-2023-53828 | Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_add_adv_monitor() | |
| CVE-2022-50674 | riscv: vdso: fix NULL deference in vdso_join_timens() when vfork |
Showing top 20 of 152 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2023-53822
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