USB: core: Fix race by not overwriting udev->descriptor in hub_port_init()
In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix race by not overwriting udev->descriptor in hub_port_init() Syzbot reported an out-of-bounds read in sysfs.c:read_descriptors(): BUG: KASAN: slab-out-of-bounds in read_descriptors+0x263/0x280 drivers/usb/core/sysfs.c:883 Read of size 8 at addr ffff88801e78b8c8 by task udevd/5011 CPU: 0 PID: 5011 Comm: udevd Not tainted 6.4.0-rc6-syzkaller-00195-g40f71e7cd3c6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 print_address_description.constprop.0+0x2c/0x3c0 mm/kasan/report.c:351 print_report mm/kasan/report.c:462 [inline] kasan_report+0x11c/0x130 mm/kasan/report.c:572 read_descriptors+0x263/0x280 drivers/usb/core/sysfs.c:883 ... Allocated by task 758: ... __do_kmalloc_node mm/slab_common.c:966 [inline] __kmalloc+0x5e/0x190 mm/slab_common.c:979 kmalloc include/linux/slab.h:563 [inline] kzalloc include/linux/slab.h:680 [inline] usb_get_configuration+0x1f7/0x5170 drivers/usb/core/config.c:887 usb_enumerate_device drivers/usb/core/hub.c:2407 [inline] usb_new_device+0x12b0/0x19d0 drivers/usb/core/hub.c:2545 As analyzed by Khazhy Kumykov, the cause of this bug is a race between read_descriptors() and hub_port_init(): The first routine uses a field in udev->descriptor, not expecting it to change, while the second overwrites it. Prior to commit 45bf39f8df7f ("USB
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.195, 5.15.132, 6.1.53, 6.4.16, 6.5.3
- CVEs
- CVE-2023-52886
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 00:28 UTC · Revision 1
Source evidence
USB: core: Fix race by not overwriting udev->descriptor in hub_port_init()
core-osv · Original sourcePublished 16 Jul 2024, 09:40 UTC
In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix race by not overwriting udev->descriptor in hub_port_init() Syzbot reported an out-of-bounds read in sysfs.c:read_descriptors(): BUG: KASAN: slab-out-of-bounds in read_descriptors+0x263/0x280 drivers/usb/core/sysfs.c:883 Read of size 8 at addr ffff88801e78b8c8 by task udevd/5011 CPU: 0 PID: 5011 Comm: udevd Not tainted 6.4.0-rc6-syzkaller-00195-g40f71e7cd3c6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 print_address_description.constprop.0+0x2c/0x3c0 mm/kasan/report.c:351 print_report mm/kasan/report.c:462 [inline] kasan_report+0x11c/0x130 mm/kasan/report.c:572 read_descriptors+0x263/0x280 drivers/usb/core/sysfs.c:883 ... Allocated by task 758: ... __do_kmalloc_node mm/slab_common.c:966 [inline] __kmalloc+0x5e/0x190 mm/slab_common.c:979 kmalloc include/linux/slab.h:563 [inline] kzalloc include/linux/slab.h:680 [inline] usb_get_configuration+0x1f7/0x5170 drivers/usb/core/config.c:887 usb_enumerate_device drivers/usb/core/hub.c:2407 [inline] usb_new_device+0x12b0/0x19d0 drivers/usb/core/hub.c:2545 As analyzed by Khazhy Kumykov, the cause of this bug is a race between read_descriptors() and hub_port_init(): The first routine uses a field in udev->descriptor, not expecting it to change, while the second overwrites it. Prior to commit 45bf39f8df7f ("USB
osv:CVE-2023-52886
Kernel
Fixed versions: 5.10.195, 5.15.132, 6.1.53, 6.4.16, 6.5.3
Complete source record
{
"id": "50e48a1ba0defd2d3918b298490babe1a163ffe21ea6d92d1c2e361f15bd17c4",
"url": "https://osv.dev/vulnerability/CVE-2023-52886",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "USB: core: Fix race by not overwriting udev->descriptor in hub_port_init()",
"summary": "In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix race by not overwriting udev->descriptor in hub_port_init() Syzbot reported an out-of-bounds read in sysfs.c:read_descriptors(): BUG: KASAN: slab-out-of-bounds in read_descriptors+0x263/0x280 drivers/usb/core/sysfs.c:883 Read of size 8 at addr ffff88801e78b8c8 by task udevd/5011 CPU: 0 PID: 5011 Comm: udevd Not tainted 6.4.0-rc6-syzkaller-00195-g40f71e7cd3c6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 print_address_description.constprop.0+0x2c/0x3c0 mm/kasan/report.c:351 print_report mm/kasan/report.c:462 [inline] kasan_report+0x11c/0x130 mm/kasan/report.c:572 read_descriptors+0x263/0x280 drivers/usb/core/sysfs.c:883 ... Allocated by task 758: ... __do_kmalloc_node mm/slab_common.c:966 [inline] __kmalloc+0x5e/0x190 mm/slab_common.c:979 kmalloc include/linux/slab.h:563 [inline] kzalloc include/linux/slab.h:680 [inline] usb_get_configuration+0x1f7/0x5170 drivers/usb/core/config.c:887 usb_enumerate_device drivers/usb/core/hub.c:2407 [inline] usb_new_device+0x12b0/0x19d0 drivers/usb/core/hub.c:2545 As analyzed by Khazhy Kumykov, the cause of this bug is a race between read_descriptors() and hub_port_init(): The first routine uses a field in udev->descriptor, not expecting it to change, while the second overwrites it. Prior to commit 45bf39f8df7f (\"USB",
"evidence": "osv:CVE-2023-52886",
"products": [
{
"name": {
"value": "Kernel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.10.195",
"evidence": "/affected/1/ranges"
},
{
"value": "5.15.132",
"evidence": "/affected/1/ranges"
},
{
"value": "6.1.53",
"evidence": "/affected/1/ranges"
},
{
"value": "6.4.16",
"evidence": "/affected/1/ranges"
},
{
"value": "6.5.3",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CVE-2023-52886",
"aliases": [
"CVE-2023-52886"
],
"affected": [
{
"ranges": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "218925bfd5d1436e337c4f961e9c149fbe32de6d"
},
{
"fixed": "9d241c5d9a9b7ad95c90c6520272fe404d5ac88f"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "77358093331e9769855140bf94a3f00ecdcf4bb1"
},
{
"fixed": "7fe9d87996062f5eb0ca476ad0257f79bf43aaf5"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "c87fb861ec185fdc578b4fdc6a05920b6a843840"
},
{
"fixed": "8186596a663506b1124bede9fde6f243ef9f37ee"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "45bf39f8df7f05efb83b302c65ae3b9bc92b7065"
},
{
"fixed": "b4a074b1fb222164ed7d5c0b8c922dc4a0840848"
},
{
"fixed": "b9fbfb349eacc0820f91c797d7f0a3ac7a4935b5"
},
{
"fixed": "ff33299ec8bb80cdcc073ad9c506bd79bb2ed20b"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "5.10.171"
},
{
"fixed": "5.10.195"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "5.15.97"
},
{
"fixed": "5.15.132"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "6.1.15"
},
{
"fixed": "6.1.53"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "4.14.308"
},
{
"fixed": "4.15"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "4.19.275"
},
{
"fixed": "4.20"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "5.4.234"
},
{
"fixed": "5.5"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "6.2.2"
},
{
"fixed": "6.3"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "6badaf880edf51a2da7a439699676394dfdef3e5"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "5f35b5d3bd6914c68f743741443dfd3a64b0e455"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "a1e89c8b29d003a20ed2dae6bdae1598d1f23e42"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "1bcb238c54a9c6dc4bded06b06ba7458a5eefa87"
}
]
}
],
"versions": [
"v5.10.194",
"v5.10.193",
"v5.10.192",
"v5.10.191",
"v5.10.190",
"v5.10.189",
"v5.10.188",
"v5.10.187",
"v5.10.186",
"v5.10.185",
"v5.10.184",
"v5.10.183",
"v5.10.182",
"v5.10.181",
"v5.10.180",
"v5.10.179",
"v5.10.178",
"v5.10.177",
"v5.10.176",
"v5.10.175",
"v5.10.174",
"v5.10.173",
"v5.10.172",
"v5.10.171",
"v5.15.131",
"v5.15.130",
"v5.15.129",
"v5.15.128",
"v5.15.127",
"v5.15.126",
"v5.15.125",
"v5.15.124",
"v5.15.123",
"v5.15.122",
"v5.15.121",
"v5.15.120",
"v5.15.119",
"v5.15.118",
"v5.15.117",
"v5.15.116",
"v5.15.115",
"v5.15.114",
"v5.15.113",
"v5.15.112",
"v5.15.111",
"v5.15.110",
"v5.15.109",
"v5.15.108",
"v5.15.107",
"v5.15.106",
"v5.15.105",
"v5.15.104",
"v5.15.103",
"v5.15.102",
"v5.15.101",
"v5.15.100",
"v5.15.99",
"v5.15.98",
"v5.15.97",
"v6.1.52",
"v6.1.51",
"v6.1.50",
"v6.1.49",
"v6.1.48",
"v6.1.47",
"v6.1.46",
"v6.1.45",
"v6.1.44",
"v6.1.43",
"v6.1.42",
"v6.1.41",
"v6.1.40",
"v6.1.39",
"v6.1.38",
"v6.1.37",
"v6.1.36",
"v6.1.35",
"v6.1.34",
"v6.1.33",
"v6.1.32",
"v6.1.31",
"v6.1.30",
"v6.1.29",
"v6.1.28",
"v6.1.27",
"v6.1.26",
"v6.1.25",
"v6.1.24",
"v6.1.23",
"v6.1.22",
"v6.1.21",
"v6.1.20",
"v6.1.19",
"v6.1.18",
"v6.1.17",
"v6.1.16",
"v6.1.15",
"v4.14.336",
"v4.14.335",
"v4.14.334",
"v4.14.333",
"v4.14.332",
"v4.14.331",
"v4.14.330",
"v4.14.329",
"v4.14.328",
"v4.14.327",
"v4.14.326",
"v4.14.325",
"v4.14.324",
"v4.14.323",
"v4.14.322",
"v4.14.321",
"v4.14.320",
"v4.14.319",
"v4.14.318",
"v4.14.317",
"v4.14.316",
"v4.14.315",
"v4.14.314",
"v4.14.313",
"v4.14.312",
"v4.14.311",
"v4.14.310",
"v4.14.309",
"v4.14.308",
"v4.19.325",
"v4.19.324",
"v4.19.323",
"v4.19.322",
"v4.19.321",
"v4.19.320",
"v4.19.319",
"v4.19.318",
"v4.19.317",
"v4.19.316",
"v4.19.315",
"v4.19.314",
"v4.19.313",
"v4.19.312",
"v4.19.311",
"v4.19.310",
"v4.19.309",
"v4.19.308",
"v4.19.307",
"v4.19.306",
"v4.19.305",
"v4.19.304",
"v4.19.303",
"v4.19.302",
"v4.19.301",
"v4.19.300",
"v4.19.299",
"v4.19.298",
"v4.19.297",
"v4.19.296",
"v4.19.295",
"v4.19.294",
"v4.19.293",
"v4.19.292",
"v4.19.291",
"v4.19.290",
"v4.19.289",
"v4.19.288",
"v4.19.287",
"v4.19.286",
"v4.19.285",
"v4.19.284",
"v4.19.283",
"v4.19.282",
"v4.19.281",
"v4.19.280",
"v4.19.279",
"v4.19.278",
"v4.19.277",
"v4.19.276",
"v4.19.275",
"v5.4.302",
"v5.4.301",
"v5.4.300",
"v5.4.299",
"v5.4.298",
"v5.4.297",
"v5.4.296",
"v5.4.295",
"v5.4.294",
"v5.4.293",
"v5.4.292",
"v5.4.291",
"v5.4.290",
"v5.4.289",
"v5.4.288",
"v5.4.287",
"v5.4.286",
"v5.4.285",
"v5.4.284",
"v5.4.283",
"v5.4.282",
"v5.4.281",
"v5.4.280",
"v5.4.279",
"v5.4.278",
"v5.4.277",
"v5.4.276",
"v5.4.275",
"v5.4.274",
"v5.4.273",
"v5.4.272",
"v5.4.271",
"v5.4.270",
"v5.4.269",
"v5.4.268",
"v5.4.267",
"v5.4.266",
"v5.4.265",
"v5.4.264",
"v5.4.263",
"v5.4.262",
"v5.4.261",
"v5.4.260",
"v5.4.259",
"v5.4.258",
"v5.4.257",
"v5.4.256",
"v5.4.255",
"v5.4.254",
"v5.4.253",
"v5.4.252",
"v5.4.251",
"v5.4.250",
"v5.4.249",
"v5.4.248",
"v5.4.247",
"v5.4.246",
"v5.4.245",
"v5.4.244",
"v5.4.243",
"v5.4.242",
"v5.4.241",
"v5.4.240",
"v5.4.239",
"v5.4.238",
"v5.4.237",
"v5.4.236",
"v5.4.235",
"v5.4.234",
"v6.2.16",
"v6.2.15",
"v6.2.14",
"v6.2.13",
"v6.2.12",
"v6.2.11",
"v6.2.10",
"v6.2.9",
"v6.2.8",
"v6.2.7",
"v6.2.6",
"v6.2.5",
"v6.2.4",
"v6.2.3",
"v6.2.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52886.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.10.195"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.11.0"
},
{
"fixed": "5.15.132"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.16.0"
},
{
"fixed": "6.1.53"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.2.0"
},
{
"fixed": "6.4.16"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.3.0"
},
{
"fixed": "6.5.3"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52886.json"
}
}
],
"modified": "2026-10-28T02:30:32.431824129Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/7fe9d87996062f5eb0ca476ad0257f79bf43aaf5",
"https://git.kernel.org/stable/c/8186596a663506b1124bede9fde6f243ef9f37ee",
"https://git.kernel.org/stable/c/9d241c5d9a9b7ad95c90c6520272fe404d5ac88f",
"https://git.kernel.org/stable/c/b4a074b1fb222164ed7d5c0b8c922dc4a0840848",
"https://git.kernel.org/stable/c/b9fbfb349eacc0820f91c797d7f0a3ac7a4935b5",
"https://git.kernel.org/stable/c/ff33299ec8bb80cdcc073ad9c506bd79bb2ed20b",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52886.json",
"https://nvd.nist.gov/vuln/detail/CVE-2023-52886",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52886.json"
}
},
"related_cves": [
{
"value": "CVE-2023-52886",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 499339,
"published_at": "2024-07-16T09:40:58.495+00:00"
}