{"schema_version":"1.9.0","id":"CVE-2023-53475","published":"2025-10-01T11:42:44.604Z","modified":"2026-08-12T03:51:46.437960653Z","related":["SUSE-SU-2025:03615-1","SUSE-SU-2025:03628-1","SUSE-SU-2025:3716-1","SUSE-SU-2025:3761-1"],"summary":"usb: xhci: tegra: fix sleep in atomic call","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: xhci: tegra: fix sleep in atomic call\n\nWhen we set the dual-role port to Host mode, we observed the following\nsplat:\n[  167.057718] BUG: sleeping function called from invalid context at\ninclude/linux/sched/mm.h:229\n[  167.057872] Workqueue: events tegra_xusb_usb_phy_work\n[  167.057954] Call trace:\n[  167.057962]  dump_backtrace+0x0/0x210\n[  167.057996]  show_stack+0x30/0x50\n[  167.058020]  dump_stack_lvl+0x64/0x84\n[  167.058065]  dump_stack+0x14/0x34\n[  167.058100]  __might_resched+0x144/0x180\n[  167.058140]  __might_sleep+0x64/0xd0\n[  167.058171]  slab_pre_alloc_hook.constprop.0+0xa8/0x110\n[  167.058202]  __kmalloc_track_caller+0x74/0x2b0\n[  167.058233]  kvasprintf+0xa4/0x190\n[  167.058261]  kasprintf+0x58/0x90\n[  167.058285]  tegra_xusb_find_port_node.isra.0+0x58/0xd0\n[  167.058334]  tegra_xusb_find_port+0x38/0xa0\n[  167.058380]  tegra_xusb_padctl_get_usb3_companion+0x38/0xd0\n[  167.058430]  tegra_xhci_id_notify+0x8c/0x1e0\n[  167.058473]  notifier_call_chain+0x88/0x100\n[  167.058506]  atomic_notifier_call_chain+0x44/0x70\n[  167.058537]  tegra_xusb_usb_phy_work+0x60/0xd0\n[  167.058581]  process_one_work+0x1dc/0x4c0\n[  167.058618]  worker_thread+0x54/0x410\n[  167.058650]  kthread+0x188/0x1b0\n[  167.058672]  ret_from_fork+0x10/0x20\n\nThe function tegra_xusb_padctl_get_usb3_companion eventually calls\ntegra_xusb_find_port and this in turn calls kasprintf which might sleep\nand so cannot be called from an atomic context.\n\nFix this by moving the call to tegra_xusb_padctl_get_usb3_companion to\nthe tegra_xhci_id_work function where it is really needed.","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f836e7843036fbf34320356e156cd4267fa5bfa2"},{"fixed":"b4b4f17aa46c025da77aed5133b08971959c9684"},{"fixed":"1122474b757a5dd8b2b50008a97f33cdb10dff6e"},{"fixed":"130c61c516cd0684282a8f6ab163281d60642fc5"},{"fixed":"1fe6015aa92cc0dfd875c1d3c7c1750a1b0767d9"},{"fixed":"4c7f9d2e413dc06a157c4e5dccde84aaf4655eb3"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53475.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.7.0"},{"fixed":"5.10.178"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.107"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.24"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.2.11"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53475.json"}}],"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1122474b757a5dd8b2b50008a97f33cdb10dff6e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/130c61c516cd0684282a8f6ab163281d60642fc5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1fe6015aa92cc0dfd875c1d3c7c1750a1b0767d9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4c7f9d2e413dc06a157c4e5dccde84aaf4655eb3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b4b4f17aa46c025da77aed5133b08971959c9684"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53475.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53475"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53475.json"}}