CVE-2023-53660— bpf, cpumap: Handle skb as well when clean up ptr_ring
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I. Basic Information for CVE-2023-53660
Vulnerability Information
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Vulnerability Title
bpf, cpumap: Handle skb as well when clean up ptr_ring
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf, cpumap: Handle skb as well when clean up ptr_ring The following warning was reported when running xdp_redirect_cpu with both skb-mode and stress-mode enabled: ------------[ cut here ]------------ Incorrect XDP memory type (-2128176192) usage WARNING: CPU: 7 PID: 1442 at net/core/xdp.c:405 Modules linked in: CPU: 7 PID: 1442 Comm: kworker/7:0 Tainted: G 6.5.0-rc2+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) Workqueue: events __cpu_map_entry_free RIP: 0010:__xdp_return+0x1e4/0x4a0 ...... Call Trace: <TASK> ? show_regs+0x65/0x70 ? __warn+0xa5/0x240 ? __xdp_return+0x1e4/0x4a0 ...... xdp_return_frame+0x4d/0x150 __cpu_map_entry_free+0xf9/0x230 process_one_work+0x6b0/0xb80 worker_thread+0x96/0x720 kthread+0x1a5/0x1f0 ret_from_fork+0x3a/0x70 ret_from_fork_asm+0x1b/0x30 </TASK> The reason for the warning is twofold. One is due to the kthread cpu_map_kthread_run() is stopped prematurely. Another one is __cpu_map_ring_cleanup() doesn't handle skb mode and treats skbs in ptr_ring as XDP frames. Prematurely-stopped kthread will be fixed by the preceding patch and ptr_ring will be empty when __cpu_map_ring_cleanup() is called. But as the comments in __cpu_map_ring_cleanup() said, handling and freeing skbs in ptr_ring as well to "catch any broken behaviour gracefully".
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，该漏洞源于清理ptr_ring时未正确处理skb，可能导致内存类型错误。
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-2023-53660
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Same Patch Batch · Linux · 2025-10-07 · 118 CVEs total
| CVE-2022-50545 | r6040: Fix kmemleak in probe and remove | |
| CVE-2023-53657 | ice: Don't tx before switchdev is fully configured | |
| CVE-2023-53656 | drivers/perf: hisi: Don't migrate perf to the CPU going to teardown | |
| CVE-2023-53655 | rcu: Avoid stack overflow due to __rcu_irq_enter_check_tick() being kprobe-ed | |
| CVE-2022-50555 | tipc: fix a null-ptr-deref in tipc_topsrv_accept | |
| CVE-2022-50554 | blk-mq: avoid double ->queue_rq() because of early timeout | |
| CVE-2022-50553 | tracing/hist: Fix out-of-bound write on 'action_data.var_ref_idx' | |
| CVE-2022-50552 | blk-mq: use quiesced elevator switch when reinitializing queues | |
| CVE-2022-50551 | wifi: brcmfmac: Fix potential shift-out-of-bounds in brcmf_fw_alloc_request() | |
| CVE-2022-50550 | blk-iolatency: Fix memory leak on add_disk() failures | |
| CVE-2022-50549 | dm thin: Fix ABBA deadlock between shrink_slab and dm_pool_abort_metadata | |
| CVE-2022-50547 | media: solo6x10: fix possible memory leak in solo_sysfs_init() | |
| CVE-2022-50548 | media: i2c: hi846: Fix memory leak in hi846_parse_dt() | |
| CVE-2022-50546 | ext4: fix uninititialized value in 'ext4_evict_inode' | |
| CVE-2022-50544 | usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info() | |
| CVE-2023-53653 | media: amphion: fix REVERSE_INULL issues reported by coverity | |
| CVE-2022-50536 | bpf, sockmap: Fix repeated calls to sock_put() when msg has more_data | |
| CVE-2022-50535 | drm/amd/display: Fix potential null-deref in dm_resume | |
| CVE-2023-53654 | octeontx2-af: Add validation before accessing cgx and lmac | |
| CVE-2023-53651 | Input: exc3000 - properly stop timer on shutdown |
Showing top 20 of 118 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
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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-2023-53660
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