122 lines
8.7 KiB
JSON
122 lines
8.7 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2025-38394",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-04-16T04:51:24.011Z",
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"datePublished": "2025-07-25T12:53:39.017Z",
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"dateUpdated": "2026-05-11T21:27:08.142Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T21:27:08.142Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: appletb-kbd: fix memory corruption of input_handler_list\n\nIn appletb_kbd_probe an input handler is initialised and then registered\nwith input core through input_register_handler(). When this happens input\ncore will add the input handler (specifically its node) to the global\ninput_handler_list. The input_handler_list is central to the functionality\nof input core and is traversed in various places in input core. An example\nof this is when a new input device is plugged in and gets registered with\ninput core.\n\nThe input_handler in probe is allocated as device managed memory. If a\nprobe failure occurs after input_register_handler() the input_handler\nmemory is freed, yet it will remain in the input_handler_list. This\neffectively means the input_handler_list contains a dangling pointer\nto data belonging to a freed input handler.\n\nThis causes an issue when any other input device is plugged in - in my\ncase I had an old PixArt HP USB optical mouse and I decided to\nplug it in after a failure occurred after input_register_handler().\nThis lead to the registration of this input device via\ninput_register_device which involves traversing over every handler\nin the corrupted input_handler_list and calling input_attach_handler(),\ngiving each handler a chance to bind to newly registered device.\n\nThe core of this bug is a UAF which causes memory corruption of\ninput_handler_list and to fix it we must ensure the input handler is\nunregistered from input core, this is done through\ninput_unregister_handler().\n\n[ 63.191597] ==================================================================\n[ 63.192094] BUG: KASAN: slab-use-after-free in input_attach_handler.isra.0+0x1a9/0x1e0\n[ 63.192094] Read of size 8 at addr ffff888105ea7c80 by task kworker/0:2/54\n[ 63.192094]\n[ 63.192094] CPU: 0 UID: 0 PID: 54 Comm: kworker/0:2 Not tainted 6.16.0-rc2-00321-g2aa6621d\n[ 63.192094] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.164\n[ 63.192094] Workqueue: usb_hub_wq hub_event\n[ 63.192094] Call Trace:\n[ 63.192094] <TASK>\n[ 63.192094] dump_stack_lvl+0x53/0x70\n[ 63.192094] print_report+0xce/0x670\n[ 63.192094] kasan_report+0xce/0x100\n[ 63.192094] input_attach_handler.isra.0+0x1a9/0x1e0\n[ 63.192094] input_register_device+0x76c/0xd00\n[ 63.192094] hidinput_connect+0x686d/0xad60\n[ 63.192094] hid_connect+0xf20/0x1b10\n[ 63.192094] hid_hw_start+0x83/0x100\n[ 63.192094] hid_device_probe+0x2d1/0x680\n[ 63.192094] really_probe+0x1c3/0x690\n[ 63.192094] __driver_probe_device+0x247/0x300\n[ 63.192094] driver_probe_device+0x49/0x210\n[ 63.192094] __device_attach_driver+0x160/0x320\n[ 63.192094] bus_for_each_drv+0x10f/0x190\n[ 63.192094] __device_attach+0x18e/0x370\n[ 63.192094] bus_probe_device+0x123/0x170\n[ 63.192094] device_add+0xd4d/0x1460\n[ 63.192094] hid_add_device+0x30b/0x910\n[ 63.192094] usbhid_probe+0x920/0xe00\n[ 63.192094] usb_probe_interface+0x363/0x9a0\n[ 63.192094] really_probe+0x1c3/0x690\n[ 63.192094] __driver_probe_device+0x247/0x300\n[ 63.192094] driver_probe_device+0x49/0x210\n[ 63.192094] __device_attach_driver+0x160/0x320\n[ 63.192094] bus_for_each_drv+0x10f/0x190\n[ 63.192094] __device_attach+0x18e/0x370\n[ 63.192094] bus_probe_device+0x123/0x170\n[ 63.192094] device_add+0xd4d/0x1460\n[ 63.192094] usb_set_configuration+0xd14/0x1880\n[ 63.192094] usb_generic_driver_probe+0x78/0xb0\n[ 63.192094] usb_probe_device+0xaa/0x2e0\n[ 63.192094] really_probe+0x1c3/0x690\n[ 63.192094] __driver_probe_device+0x247/0x300\n[ 63.192094] driver_probe_device+0x49/0x210\n[ 63.192094] __device_attach_driver+0x160/0x320\n[ 63.192094] bus_for_each_drv+0x10f/0x190\n[ 63.192094] __device_attach+0x18e/0x370\n[ 63.192094] bus_probe_device+0x123/0x170\n[ 63.192094] device_add+0xd4d/0x1460\n[ 63.192094] usb_new_device+0x7b4/0x1000\n[ 63.192094] hub_event+0x234d/0x3\n---truncated---"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/hid/hid-appletb-kbd.c"
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],
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"versions": [
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{
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"version": "7d62ba8deacf94f546a0b9dd9bc86617343187a3",
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"lessThan": "6ad40b07e15c29712d9a4b8096914ccd82e3fc17",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "7d62ba8deacf94f546a0b9dd9bc86617343187a3",
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"lessThan": "c80f2b047d5cc42fbd2dff9d1942d4ba7545100f",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/hid/hid-appletb-kbd.c"
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],
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"versions": [
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{
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"version": "6.15",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.15",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.15.6",
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"lessThanOrEqual": "6.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.16",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.15",
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"versionEndExcluding": "6.15.6"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.15",
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"versionEndExcluding": "6.16"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/6ad40b07e15c29712d9a4b8096914ccd82e3fc17"
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},
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{
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"url": "https://git.kernel.org/stable/c/c80f2b047d5cc42fbd2dff9d1942d4ba7545100f"
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}
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],
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"title": "HID: appletb-kbd: fix memory corruption of input_handler_list",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |