{"id":"DEBIAN-CVE-2023-53660","details":"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:    \u003cTASK\u003e    ? 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    \u003c/TASK\u003e  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\".","modified":"2026-09-15T09:02:51.932804420Z","published":"2025-10-07T16:15:49.697Z","upstream":["CVE-2023-53660"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-53660"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.52-1"}]}],"versions":["6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53660.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.4.11-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53660.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.4.11-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53660.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}