{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-89625", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.737Z", "datePublished": "2026-09-11T19:45:22.097Z", "dateUpdated": "2026-10-21T12:48:02.232Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-21T12:48:02.232Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: sony: fix UAF of ghl_poke_timer / ghl_urb at driver unbind\n\nFor GHL (Guitar Hero Live) dongles, sony_probe() arms a periodic timer:\nghl_magic_poke() (the timer callback) submits sc->ghl_urb, and the URB\ncompletion ghl_magic_poke_cb() re-arms the timer with mod_timer().\n\nsony_remove() drained the timer with timer_delete_sync() and then freed\nthe URB with usb_free_urb():\n\n\ttimer_delete_sync(&sc->ghl_poke_timer);\n\tusb_free_urb(sc->ghl_urb);\n\ntimer_delete_sync() does not block re-arming, and while the URB is in\nflight the timer is not pending, so the sync delete is a no-op. A URB\ncompletion that runs after the delete re-arms the timer, and usb_free_urb()\nonly drops a reference -- it does not kill an in-flight URB. sc is\nallocated with devm_kzalloc() and freed once sony_remove() returns, so the\nre-armed ghl_poke_timer (embedded in sc) then fires on freed memory, a\nuse-after-free from timer softirq. This is a disconnect/rmmod race.\n\nPoison the URB first, then shut the timer down, before freeing the URB.\nusb_poison_urb() kills any in-flight URB and permanently rejects further\nsubmissions, so a poke timer that is still pending cannot re-submit the\nURB from ghl_magic_poke() in the window before timer_shutdown_sync() runs.\nusb_kill_urb() would not suffice: it only cancels the in-flight URB and\nleaves it submittable once it returns, so the pending timer could\nre-submit it and put a fresh URB in flight over the freed sc.\ntimer_shutdown_sync() then drains any last callback and blocks re-arming.\nThe probe error path is unaffected: it is only reached before the timer\nis armed.\n\nReproduced under KASAN on next-20260710 via dummy_hcd + raw-gadget\nemulation of the GHL PS4 dongle (VID 0x1430 / PID 0x07bb): hid-sony binds\nand arms the poke timer, the poke URB is held in flight, the driver is\nunbound (freeing sc), then the URB is released. The completion re-arms the\ntimer on the freed sc, and the re-armed timer fires ~8 s later:\n\n BUG: KASAN: slab-use-after-free in ghl_magic_poke+0x98/0xb0\n Read of size 8 at addr ffff88810b02fd50 by task swapper/0/0\n ghl_magic_poke+0x98/0xb0\n call_timer_fn+0x35/0x2b0\n __run_timers+0x69c/0x9a0\n run_timer_softirq+0x173/0x2a0\n Allocated by task 169: sony_probe\n Freed by task 338: devres_release_group <- hid_device_remove (sony_remove)\n\nFound by 0sec (https://0sec.ai) using automated source analysis." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/hid/hid-sony.c" ], "versions": [ { "version": "cc894ac553605c9193a7a94372ff2f8af5766f46", "lessThan": "56ef23198bdd51644372b1a9917802544b30987a", "status": "affected", "versionType": "git" }, { "version": "cc894ac553605c9193a7a94372ff2f8af5766f46", "lessThan": "0e3d42ef008f0931e3878b4f1b046b6e45a95bde", "status": "affected", "versionType": "git" }, { "version": "cc894ac553605c9193a7a94372ff2f8af5766f46", "lessThan": "114a58640aaf3c2eb97b5b01c75ab5e541d15d9c", "status": "affected", "versionType": "git" }, { "version": "cc894ac553605c9193a7a94372ff2f8af5766f46", "lessThan": "3155dc327344d286f17345cd371be05e255a4328", "status": "affected", "versionType": "git" }, { "version": "cc894ac553605c9193a7a94372ff2f8af5766f46", "lessThan": "a26705bd2e2728833e7a538ce91e58a5eeff496a", "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/hid/hid-sony.c" ], "versions": [ { "version": "5.11", "status": "affected" }, { "version": "0", "lessThan": "5.11", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.111", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.3", "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": "5.11", "versionEndExcluding": "6.6.160" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.12.111" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.18.50" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "7.2.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "7.3" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/56ef23198bdd51644372b1a9917802544b30987a" }, { "url": "https://git.kernel.org/stable/c/0e3d42ef008f0931e3878b4f1b046b6e45a95bde" }, { "url": "https://git.kernel.org/stable/c/114a58640aaf3c2eb97b5b01c75ab5e541d15d9c" }, { "url": "https://git.kernel.org/stable/c/3155dc327344d286f17345cd371be05e255a4328" }, { "url": "https://git.kernel.org/stable/c/a26705bd2e2728833e7a538ce91e58a5eeff496a" } ], "title": "HID: sony: fix UAF of ghl_poke_timer / ghl_urb at driver unbind", "x_generator": { "engine": "bippy-1.2.0" } } } }