{"api_version":"1","generated_at":"2026-09-12T11:59:03+00:00","cve":"CVE-2026-89625","urls":{"html":"https://cve.report/CVE-2026-89625","api":"https://cve.report/api/cve/CVE-2026-89625.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-89625","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-89625"},"summary":{"title":"HID: sony: fix UAF of ghl_poke_timer / ghl_urb at driver unbind","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-11 20:19:47","updated_at":"2026-09-11 20:19:47"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/a26705bd2e2728833e7a538ce91e58a5eeff496a","name":"https://git.kernel.org/stable/c/a26705bd2e2728833e7a538ce91e58a5eeff496a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3155dc327344d286f17345cd371be05e255a4328","name":"https://git.kernel.org/stable/c/3155dc327344d286f17345cd371be05e255a4328","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/114a58640aaf3c2eb97b5b01c75ab5e541d15d9c","name":"https://git.kernel.org/stable/c/114a58640aaf3c2eb97b5b01c75ab5e541d15d9c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89625","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89625","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cc894ac553605c9193a7a94372ff2f8af5766f46 114a58640aaf3c2eb97b5b01c75ab5e541d15d9c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cc894ac553605c9193a7a94372ff2f8af5766f46 3155dc327344d286f17345cd371be05e255a4328 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cc894ac553605c9193a7a94372ff2f8af5766f46 a26705bd2e2728833e7a538ce91e58a5eeff496a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.11","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.11 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.50 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.4 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/hid/hid-sony.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"114a58640aaf3c2eb97b5b01c75ab5e541d15d9c","status":"affected","version":"cc894ac553605c9193a7a94372ff2f8af5766f46","versionType":"git"},{"lessThan":"3155dc327344d286f17345cd371be05e255a4328","status":"affected","version":"cc894ac553605c9193a7a94372ff2f8af5766f46","versionType":"git"},{"lessThan":"a26705bd2e2728833e7a538ce91e58a5eeff496a","status":"affected","version":"cc894ac553605c9193a7a94372ff2f8af5766f46","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/hid/hid-sony.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.11"},{"lessThan":"5.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.50","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.50","versionStartIncluding":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.4","versionStartIncluding":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"5.11","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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."}],"providerMetadata":{"dateUpdated":"2026-09-11T19:45:22.097Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-89625","datePublished":"2026-09-11T19:45:22.097Z","dateReserved":"2026-09-11T19:38:34.737Z","dateUpdated":"2026-09-11T19:45:22.097Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-11 20:19:47","lastModifiedDate":"2026-09-11 20:19:47","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"89625","Ordinal":"1","Title":"HID: sony: fix UAF of ghl_poke_timer / ghl_urb at driver unbind","CVE":"CVE-2026-89625","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"89625","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"HID: sony: fix UAF of ghl_poke_timer / ghl_urb at driver unbind"}]}}}