{"id":"DEBIAN-CVE-2023-52901","details":"In the Linux kernel, the following vulnerability has been resolved:  usb: xhci: Check endpoint is valid before dereferencing it  When the host controller is not responding, all URBs queued to all endpoints need to be killed. This can cause a kernel panic if we dereference an invalid endpoint.  Fix this by using xhci_get_virt_ep() helper to find the endpoint and checking if the endpoint is valid before dereferencing it.  [233311.853271] xhci-hcd xhci-hcd.1.auto: xHCI host controller not responding, assume dead [233311.853393] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000e8  [233311.853964] pc : xhci_hc_died+0x10c/0x270 [233311.853971] lr : xhci_hc_died+0x1ac/0x270  [233311.854077] Call trace: [233311.854085]  xhci_hc_died+0x10c/0x270 [233311.854093]  xhci_stop_endpoint_command_watchdog+0x100/0x1a4 [233311.854105]  call_timer_fn+0x50/0x2d4 [233311.854112]  expire_timers+0xac/0x2e4 [233311.854118]  run_timer_softirq+0x300/0xabc [233311.854127]  __do_softirq+0x148/0x528 [233311.854135]  irq_exit+0x194/0x1a8 [233311.854143]  __handle_domain_irq+0x164/0x1d0 [233311.854149]  gic_handle_irq.22273+0x10c/0x188 [233311.854156]  el1_irq+0xfc/0x1a8 [233311.854175]  lpm_cpuidle_enter+0x25c/0x418 [msm_pm] [233311.854185]  cpuidle_enter_state+0x1f0/0x764 [233311.854194]  do_idle+0x594/0x6ac [233311.854201]  cpu_startup_entry+0x7c/0x80 [233311.854209]  secondary_start_kernel+0x170/0x198","modified":"2026-09-15T09:03:02.379080333Z","published":"2024-08-21T07:15:06.363Z","upstream":["CVE-2023-52901"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-52901"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52901.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52901.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52901.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"}]}