| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: altmode should keep reference to parent\n\nThe altmode device release refers to its parent device, but without keeping\na reference to it.\n\nWhen registering the altmode, get a reference to the parent and put it in\nthe release function.\n\nBefore this fix, when using CONFIG_DEBUG_KOBJECT_RELEASE, we see issues\nlike this:\n\n[ 43.572860] kobject: 'port0.0' (ffff8880057ba008): kobject_release, parent 0000000000000000 (delayed 3000)\n[ 43.573532] kobject: 'port0.1' (ffff8880057bd008): kobject_release, parent 0000000000000000 (delayed 1000)\n[ 43.574407] kobject: 'port0' (ffff8880057b9008): kobject_release, parent 0000000000000000 (delayed 3000)\n[ 43.575059] kobject: 'port1.0' (ffff8880057ca008): kobject_release, parent 0000000000000000 (delayed 4000)\n[ 43.575908] kobject: 'port1.1' (ffff8880057c9008): kobject_release, parent 0000000000000000 (delayed 4000)\n[ 43.576908] kobject: 'typec' (ffff8880062dbc00): kobject_release, parent 0000000000000000 (delayed 4000)\n[ 43.577769] kobject: 'port1' (ffff8880057bf008): kobject_release, parent 0000000000000000 (delayed 3000)\n[ 46.612867] ==================================================================\n[ 46.613402] BUG: KASAN: slab-use-after-free in typec_altmode_release+0x38/0x129\n[ 46.614003] Read of size 8 at addr ffff8880057b9118 by task kworker/2:1/48\n[ 46.614538]\n[ 46.614668] CPU: 2 UID: 0 PID: 48 Comm: kworker/2:1 Not tainted 6.12.0-rc1-00138-gedbae730ad31 #535\n[ 46.615391] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014\n[ 46.616042] Workqueue: events kobject_delayed_cleanup\n[ 46.616446] Call Trace:\n[ 46.616648] <TASK>\n[ 46.616820] dump_stack_lvl+0x5b/0x7c\n[ 46.617112] ? typec_altmode_release+0x38/0x129\n[ 46.617470] print_report+0x14c/0x49e\n[ 46.617769] ? rcu_read_unlock_sched+0x56/0x69\n[ 46.618117] ? __virt_addr_valid+0x19a/0x1ab\n[ 46.618456] ? kmem_cache_debug_flags+0xc/0x1d\n[ 46.618807] ? typec_altmode_release+0x38/0x129\n[ 46.619161] kasan_report+0x8d/0xb4\n[ 46.619447] ? typec_altmode_release+0x38/0x129\n[ 46.619809] ? process_scheduled_works+0x3cb/0x85f\n[ 46.620185] typec_altmode_release+0x38/0x129\n[ 46.620537] ? process_scheduled_works+0x3cb/0x85f\n[ 46.620907] device_release+0xaf/0xf2\n[ 46.621206] kobject_delayed_cleanup+0x13b/0x17a\n[ 46.621584] process_scheduled_works+0x4f6/0x85f\n[ 46.621955] ? __pfx_process_scheduled_works+0x10/0x10\n[ 46.622353] ? hlock_class+0x31/0x9a\n[ 46.622647] ? lock_acquired+0x361/0x3c3\n[ 46.622956] ? move_linked_works+0x46/0x7d\n[ 46.623277] worker_thread+0x1ce/0x291\n[ 46.623582] ? __kthread_parkme+0xc8/0xdf\n[ 46.623900] ? __pfx_worker_thread+0x10/0x10\n[ 46.624236] kthread+0x17e/0x190\n[ 46.624501] ? kthread+0xfb/0x190\n[ 46.624756] ? __pfx_kthread+0x10/0x10\n[ 46.625015] ret_from_fork+0x20/0x40\n[ 46.625268] ? __pfx_kthread+0x10/0x10\n[ 46.625532] ret_from_fork_asm+0x1a/0x30\n[ 46.625805] </TASK>\n[ 46.625953]\n[ 46.626056] Allocated by task 678:\n[ 46.626287] kasan_save_stack+0x24/0x44\n[ 46.626555] kasan_save_track+0x14/0x2d\n[ 46.626811] __kasan_kmalloc+0x3f/0x4d\n[ 46.627049] __kmalloc_noprof+0x1bf/0x1f0\n[ 46.627362] typec_register_port+0x23/0x491\n[ 46.627698] cros_typec_probe+0x634/0xbb6\n[ 46.628026] platform_probe+0x47/0x8c\n[ 46.628311] really_probe+0x20a/0x47d\n[ 46.628605] device_driver_attach+0x39/0x72\n[ 46.628940] bind_store+0x87/0xd7\n[ 46.629213] kernfs_fop_write_iter+0x1aa/0x218\n[ 46.629574] vfs_write+0x1d6/0x29b\n[ 46.629856] ksys_write+0xcd/0x13b\n[ 46.630128] do_syscall_64+0xd4/0x139\n[ 46.630420] entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[ 46.630820]\n[ 46.630946] Freed by task 48:\n[ 46.631182] kasan_save_stack+0x24/0x44\n[ 46.631493] kasan_save_track+0x14/0x2d\n[ 46.631799] kasan_save_free_info+0x3f/0x4d\n[ 46.632144] __kasan_slab_free+0x37/0x45\n[ 46.632474]\n---truncated---" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/usb/typec/class.c" |
| ], |
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| { |
| "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7", |
| "lessThan": "2b0b33e8a58388fa9078f0fbe9af1900e6b08879", |
| "status": "affected", |
| "versionType": "git" |
| }, |
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| "lessThan": "2c15c4133d00f5da632fce60ed013fc31aa9aa58", |
| "status": "affected", |
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| }, |
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| "status": "affected", |
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| }, |
| { |
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| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/usb/typec/class.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.19", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
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| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.323", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.285", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.229", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.170", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.115", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.59", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.11.6", |
| "lessThanOrEqual": "6.11.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.19", |
| "versionEndExcluding": "4.19.323" |
| }, |
| { |
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| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/2b0b33e8a58388fa9078f0fbe9af1900e6b08879" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/2c15c4133d00f5da632fce60ed013fc31aa9aa58" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/6af43ec3bf40f8b428d9134ffa7a291aecd60da8" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/87474406056891e4fdea0794e1f632b21b3dfa27" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/bee1b68cb8bcee4fd3a8bde3a4886e0b1375dc4d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/1ded6b12499e6dee9b0e1ceac633be36538f6fc2" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/68a7c7fe322546be1464174c8d85874b8161deda" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/befab3a278c59db0cc88c8799638064f6d3fd6f8" |
| } |
| ], |
| "title": "usb: typec: altmode should keep reference to parent", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-50150", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
