{"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":"2026-09-21T13:14:37.613Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-21T13:14:37.613Z"},"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":"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":"6.12.111","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-rc1","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":"6.12.111"},{"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-rc1"}]}]}],"references":[{"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"}}}}