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CVE-2025-39995 (GCVE-0-2025-39995)

Vulnerability from cvelistv5 – Published: 2025-10-15 07:58 – Updated: 2026-05-11 21:40
VLAI
Title
media: i2c: tc358743: Fix use-after-free bugs caused by orphan timer in probe
Summary
In the Linux kernel, the following vulnerability has been resolved: media: i2c: tc358743: Fix use-after-free bugs caused by orphan timer in probe The state->timer is a cyclic timer that schedules work_i2c_poll and delayed_work_enable_hotplug, while rearming itself. Using timer_delete() fails to guarantee the timer isn't still running when destroyed, similarly cancel_delayed_work() cannot ensure delayed_work_enable_hotplug has terminated if already executing. During probe failure after timer initialization, these may continue running as orphans and reference the already-freed tc358743_state object through tc358743_irq_poll_timer. The following is the trace captured by KASAN. BUG: KASAN: slab-use-after-free in __run_timer_base.part.0+0x7d7/0x8c0 Write of size 8 at addr ffff88800ded83c8 by task swapper/1/0 ... Call Trace: <IRQ> dump_stack_lvl+0x55/0x70 print_report+0xcf/0x610 ? __pfx_sched_balance_find_src_group+0x10/0x10 ? __run_timer_base.part.0+0x7d7/0x8c0 kasan_report+0xb8/0xf0 ? __run_timer_base.part.0+0x7d7/0x8c0 __run_timer_base.part.0+0x7d7/0x8c0 ? rcu_sched_clock_irq+0xb06/0x27d0 ? __pfx___run_timer_base.part.0+0x10/0x10 ? try_to_wake_up+0xb15/0x1960 ? tmigr_update_events+0x280/0x740 ? _raw_spin_lock_irq+0x80/0xe0 ? __pfx__raw_spin_lock_irq+0x10/0x10 tmigr_handle_remote_up+0x603/0x7e0 ? __pfx_tmigr_handle_remote_up+0x10/0x10 ? sched_balance_trigger+0x98/0x9f0 ? sched_tick+0x221/0x5a0 ? _raw_spin_lock_irq+0x80/0xe0 ? __pfx__raw_spin_lock_irq+0x10/0x10 ? tick_nohz_handler+0x339/0x440 ? __pfx_tmigr_handle_remote_up+0x10/0x10 __walk_groups.isra.0+0x42/0x150 tmigr_handle_remote+0x1f4/0x2e0 ? __pfx_tmigr_handle_remote+0x10/0x10 ? ktime_get+0x60/0x140 ? lapic_next_event+0x11/0x20 ? clockevents_program_event+0x1d4/0x2a0 ? hrtimer_interrupt+0x322/0x780 handle_softirqs+0x16a/0x550 irq_exit_rcu+0xaf/0xe0 sysvec_apic_timer_interrupt+0x70/0x80 </IRQ> ... Allocated by task 141: kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_kmalloc+0x7f/0x90 __kmalloc_node_track_caller_noprof+0x198/0x430 devm_kmalloc+0x7b/0x1e0 tc358743_probe+0xb7/0x610 i2c_device_probe+0x51d/0x880 really_probe+0x1ca/0x5c0 __driver_probe_device+0x248/0x310 driver_probe_device+0x44/0x120 __device_attach_driver+0x174/0x220 bus_for_each_drv+0x100/0x190 __device_attach+0x206/0x370 bus_probe_device+0x123/0x170 device_add+0xd25/0x1470 i2c_new_client_device+0x7a0/0xcd0 do_one_initcall+0x89/0x300 do_init_module+0x29d/0x7f0 load_module+0x4f48/0x69e0 init_module_from_file+0xe4/0x150 idempotent_init_module+0x320/0x670 __x64_sys_finit_module+0xbd/0x120 do_syscall_64+0xac/0x280 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 141: kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3a/0x60 __kasan_slab_free+0x3f/0x50 kfree+0x137/0x370 release_nodes+0xa4/0x100 devres_release_group+0x1b2/0x380 i2c_device_probe+0x694/0x880 really_probe+0x1ca/0x5c0 __driver_probe_device+0x248/0x310 driver_probe_device+0x44/0x120 __device_attach_driver+0x174/0x220 bus_for_each_drv+0x100/0x190 __device_attach+0x206/0x370 bus_probe_device+0x123/0x170 device_add+0xd25/0x1470 i2c_new_client_device+0x7a0/0xcd0 do_one_initcall+0x89/0x300 do_init_module+0x29d/0x7f0 load_module+0x4f48/0x69e0 init_module_from_file+0xe4/0x150 idempotent_init_module+0x320/0x670 __x64_sys_finit_module+0xbd/0x120 do_syscall_64+0xac/0x280 entry_SYSCALL_64_after_hwframe+0x77/0x7f ... Replace timer_delete() with timer_delete_sync() and cancel_delayed_work() with cancel_delayed_work_sync() to ensure proper termination of timer and work items before resource cleanup. This bug was initially identified through static analysis. For reproduction and testing, I created a functional emulation of the tc358743 device via a kernel module and introduced faults through the debugfs interface.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d32d98642de66048f9534a05f3641558e811bbc9 , < 9205fb6e617a1c596d9a9ad2a160ee696e09d520 (git)
Affected: d32d98642de66048f9534a05f3641558e811bbc9 , < 70913586c717dd25cfbade7a418e92cc9c99398a (git)
Affected: d32d98642de66048f9534a05f3641558e811bbc9 , < 663faf1179db9663a3793c75e9bc869358bad910 (git)
Affected: d32d98642de66048f9534a05f3641558e811bbc9 , < 3d17701c156579969470e58b3a906511f8bc018d (git)
Affected: d32d98642de66048f9534a05f3641558e811bbc9 , < 228d06c4cbfc750f1216a3fd91b4693b0766d2f6 (git)
Affected: d32d98642de66048f9534a05f3641558e811bbc9 , < f92181c0e13cad9671d07b15be695a97fc2534a3 (git)
Affected: d32d98642de66048f9534a05f3641558e811bbc9 , < f3f3f00bcabbd2ce0a77a2ac7a6797b8646bfd8b (git)
Affected: d32d98642de66048f9534a05f3641558e811bbc9 , < 2610617effb4454d2f1c434c011ccb5cc7140711 (git)
Affected: d32d98642de66048f9534a05f3641558e811bbc9 , < 79d10f4f21a92e459b2276a77be62c59c1502c9d (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.3
Unaffected: 0 , < 4.3 (semver)
Unaffected: 5.4.301 , ≤ 5.4.* (semver)
Unaffected: 5.10.246 , ≤ 5.10.* (semver)
Unaffected: 5.15.195 , ≤ 5.15.* (semver)
Unaffected: 6.1.156 , ≤ 6.1.* (semver)
Unaffected: 6.6.111 , ≤ 6.6.* (semver)
Unaffected: 6.12.52 , ≤ 6.12.* (semver)
Unaffected: 6.16.11 , ≤ 6.16.* (semver)
Unaffected: 6.17.1 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: i2c: tc358743: Fix use-after-free bugs caused by orphan timer in probe\n\nThe state-\u003etimer is a cyclic timer that schedules work_i2c_poll and\ndelayed_work_enable_hotplug, while rearming itself. Using timer_delete()\nfails to guarantee the timer isn\u0027t still running when destroyed, similarly\ncancel_delayed_work() cannot ensure delayed_work_enable_hotplug has\nterminated if already executing. During probe failure after timer\ninitialization, these may continue running as orphans and reference the\nalready-freed tc358743_state object through tc358743_irq_poll_timer.\n\nThe following is the trace captured by KASAN.\n\nBUG: KASAN: slab-use-after-free in __run_timer_base.part.0+0x7d7/0x8c0\nWrite of size 8 at addr ffff88800ded83c8 by task swapper/1/0\n...\nCall Trace:\n \u003cIRQ\u003e\n dump_stack_lvl+0x55/0x70\n print_report+0xcf/0x610\n ? __pfx_sched_balance_find_src_group+0x10/0x10\n ? __run_timer_base.part.0+0x7d7/0x8c0\n kasan_report+0xb8/0xf0\n ? __run_timer_base.part.0+0x7d7/0x8c0\n __run_timer_base.part.0+0x7d7/0x8c0\n ? rcu_sched_clock_irq+0xb06/0x27d0\n ? __pfx___run_timer_base.part.0+0x10/0x10\n ? try_to_wake_up+0xb15/0x1960\n ? tmigr_update_events+0x280/0x740\n ? _raw_spin_lock_irq+0x80/0xe0\n ? __pfx__raw_spin_lock_irq+0x10/0x10\n tmigr_handle_remote_up+0x603/0x7e0\n ? __pfx_tmigr_handle_remote_up+0x10/0x10\n ? sched_balance_trigger+0x98/0x9f0\n ? sched_tick+0x221/0x5a0\n ? _raw_spin_lock_irq+0x80/0xe0\n ? __pfx__raw_spin_lock_irq+0x10/0x10\n ? tick_nohz_handler+0x339/0x440\n ? __pfx_tmigr_handle_remote_up+0x10/0x10\n __walk_groups.isra.0+0x42/0x150\n tmigr_handle_remote+0x1f4/0x2e0\n ? __pfx_tmigr_handle_remote+0x10/0x10\n ? ktime_get+0x60/0x140\n ? lapic_next_event+0x11/0x20\n ? clockevents_program_event+0x1d4/0x2a0\n ? hrtimer_interrupt+0x322/0x780\n handle_softirqs+0x16a/0x550\n irq_exit_rcu+0xaf/0xe0\n sysvec_apic_timer_interrupt+0x70/0x80\n \u003c/IRQ\u003e\n...\n\nAllocated by task 141:\n kasan_save_stack+0x24/0x50\n kasan_save_track+0x14/0x30\n __kasan_kmalloc+0x7f/0x90\n __kmalloc_node_track_caller_noprof+0x198/0x430\n devm_kmalloc+0x7b/0x1e0\n tc358743_probe+0xb7/0x610  i2c_device_probe+0x51d/0x880\n really_probe+0x1ca/0x5c0\n __driver_probe_device+0x248/0x310\n driver_probe_device+0x44/0x120\n __device_attach_driver+0x174/0x220\n bus_for_each_drv+0x100/0x190\n __device_attach+0x206/0x370\n bus_probe_device+0x123/0x170\n device_add+0xd25/0x1470\n i2c_new_client_device+0x7a0/0xcd0\n do_one_initcall+0x89/0x300\n do_init_module+0x29d/0x7f0\n load_module+0x4f48/0x69e0\n init_module_from_file+0xe4/0x150\n idempotent_init_module+0x320/0x670\n __x64_sys_finit_module+0xbd/0x120\n do_syscall_64+0xac/0x280\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFreed by task 141:\n kasan_save_stack+0x24/0x50\n kasan_save_track+0x14/0x30\n kasan_save_free_info+0x3a/0x60\n __kasan_slab_free+0x3f/0x50\n kfree+0x137/0x370\n release_nodes+0xa4/0x100\n devres_release_group+0x1b2/0x380\n i2c_device_probe+0x694/0x880\n really_probe+0x1ca/0x5c0\n __driver_probe_device+0x248/0x310\n driver_probe_device+0x44/0x120\n __device_attach_driver+0x174/0x220\n bus_for_each_drv+0x100/0x190\n __device_attach+0x206/0x370\n bus_probe_device+0x123/0x170\n device_add+0xd25/0x1470\n i2c_new_client_device+0x7a0/0xcd0\n do_one_initcall+0x89/0x300\n do_init_module+0x29d/0x7f0\n load_module+0x4f48/0x69e0\n init_module_from_file+0xe4/0x150\n idempotent_init_module+0x320/0x670\n __x64_sys_finit_module+0xbd/0x120\n do_syscall_64+0xac/0x280\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n...\n\nReplace timer_delete() with timer_delete_sync() and cancel_delayed_work()\nwith cancel_delayed_work_sync() to ensure proper termination of timer and\nwork items before resource cleanup.\n\nThis bug was initially identified through static analysis. For reproduction\nand testing, I created a functional emulation of the tc358743 device via a\nkernel module and introduced faults through the debugfs interface."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:40:26.312Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9205fb6e617a1c596d9a9ad2a160ee696e09d520"
        },
        {
          "url": "https://git.kernel.org/stable/c/70913586c717dd25cfbade7a418e92cc9c99398a"
        },
        {
          "url": "https://git.kernel.org/stable/c/663faf1179db9663a3793c75e9bc869358bad910"
        },
        {
          "url": "https://git.kernel.org/stable/c/3d17701c156579969470e58b3a906511f8bc018d"
        },
        {
          "url": "https://git.kernel.org/stable/c/228d06c4cbfc750f1216a3fd91b4693b0766d2f6"
        },
        {
          "url": "https://git.kernel.org/stable/c/f92181c0e13cad9671d07b15be695a97fc2534a3"
        },
        {
          "url": "https://git.kernel.org/stable/c/f3f3f00bcabbd2ce0a77a2ac7a6797b8646bfd8b"
        },
        {
          "url": "https://git.kernel.org/stable/c/2610617effb4454d2f1c434c011ccb5cc7140711"
        },
        {
          "url": "https://git.kernel.org/stable/c/79d10f4f21a92e459b2276a77be62c59c1502c9d"
        }
      ],
      "title": "media: i2c: tc358743: Fix use-after-free bugs caused by orphan timer in probe",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39995",
    "datePublished": "2025-10-15T07:58:20.365Z",
    "dateReserved": "2025-04-16T07:20:57.151Z",
    "dateUpdated": "2026-05-11T21:40:26.312Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-39995",
      "date": "2026-09-19",
      "epss": "0.00233",
      "percentile": "0.14542"
    },
    "microsoft_vex": {
      "current_release_date": "2025-10-16T01:02:10.000Z",
      "cve": "CVE-2025-39995",
      "id": "msrc_CVE-2025-39995",
      "initial_release_date": "2025-10-02T00:00:00.000Z",
      "product_status:known_not_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "media: i2c: tc358743: Fix use-after-free bugs caused by orphan timer in probe",
      "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-39995.json",
      "version": "1"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/media/i2c/tc358743.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "9205fb6e617a1c596d9a9ad2a160ee696e09d520",
                    "status": "affected",
                    "version": "d32d98642de66048f9534a05f3641558e811bbc9",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "70913586c717dd25cfbade7a418e92cc9c99398a",
                    "status": "affected",
                    "version": "d32d98642de66048f9534a05f3641558e811bbc9",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "663faf1179db9663a3793c75e9bc869358bad910",
                    "status": "affected",
                    "version": "d32d98642de66048f9534a05f3641558e811bbc9",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "3d17701c156579969470e58b3a906511f8bc018d",
                    "status": "affected",
                    "version": "d32d98642de66048f9534a05f3641558e811bbc9",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "228d06c4cbfc750f1216a3fd91b4693b0766d2f6",
                    "status": "affected",
                    "version": "d32d98642de66048f9534a05f3641558e811bbc9",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "f92181c0e13cad9671d07b15be695a97fc2534a3",
                    "status": "affected",
                    "version": "d32d98642de66048f9534a05f3641558e811bbc9",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "f3f3f00bcabbd2ce0a77a2ac7a6797b8646bfd8b",
                    "status": "affected",
                    "version": "d32d98642de66048f9534a05f3641558e811bbc9",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "2610617effb4454d2f1c434c011ccb5cc7140711",
                    "status": "affected",
                    "version": "d32d98642de66048f9534a05f3641558e811bbc9",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "79d10f4f21a92e459b2276a77be62c59c1502c9d",
                    "status": "affected",
                    "version": "d32d98642de66048f9534a05f3641558e811bbc9",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/media/i2c/tc358743.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "4.3"
                  },
                  {
                    "lessThan": "4.3",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.4.*",
                    "status": "unaffected",
                    "version": "5.4.301",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.246",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.195",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.156",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.111",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.52",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.16.*",
                    "status": "unaffected",
                    "version": "6.16.11",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.17.*",
                    "status": "unaffected",
                    "version": "6.17.1",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.18",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: i2c: tc358743: Fix use-after-free bugs caused by orphan timer in probe\n\nThe state-\u003etimer is a cyclic timer that schedules work_i2c_poll and\ndelayed_work_enable_hotplug, while rearming itself. Using timer_delete()\nfails to guarantee the timer isn\u0027t still running when destroyed, similarly\ncancel_delayed_work() cannot ensure delayed_work_enable_hotplug has\nterminated if already executing. During probe failure after timer\ninitialization, these may continue running as orphans and reference the\nalready-freed tc358743_state object through tc358743_irq_poll_timer.\n\nThe following is the trace captured by KASAN.\n\nBUG: KASAN: slab-use-after-free in __run_timer_base.part.0+0x7d7/0x8c0\nWrite of size 8 at addr ffff88800ded83c8 by task swapper/1/0\n...\nCall Trace:\n \u003cIRQ\u003e\n dump_stack_lvl+0x55/0x70\n print_report+0xcf/0x610\n ? __pfx_sched_balance_find_src_group+0x10/0x10\n ? __run_timer_base.part.0+0x7d7/0x8c0\n kasan_report+0xb8/0xf0\n ? __run_timer_base.part.0+0x7d7/0x8c0\n __run_timer_base.part.0+0x7d7/0x8c0\n ? rcu_sched_clock_irq+0xb06/0x27d0\n ? __pfx___run_timer_base.part.0+0x10/0x10\n ? try_to_wake_up+0xb15/0x1960\n ? tmigr_update_events+0x280/0x740\n ? _raw_spin_lock_irq+0x80/0xe0\n ? __pfx__raw_spin_lock_irq+0x10/0x10\n tmigr_handle_remote_up+0x603/0x7e0\n ? __pfx_tmigr_handle_remote_up+0x10/0x10\n ? sched_balance_trigger+0x98/0x9f0\n ? sched_tick+0x221/0x5a0\n ? _raw_spin_lock_irq+0x80/0xe0\n ? __pfx__raw_spin_lock_irq+0x10/0x10\n ? tick_nohz_handler+0x339/0x440\n ? __pfx_tmigr_handle_remote_up+0x10/0x10\n __walk_groups.isra.0+0x42/0x150\n tmigr_handle_remote+0x1f4/0x2e0\n ? __pfx_tmigr_handle_remote+0x10/0x10\n ? ktime_get+0x60/0x140\n ? lapic_next_event+0x11/0x20\n ? clockevents_program_event+0x1d4/0x2a0\n ? hrtimer_interrupt+0x322/0x780\n handle_softirqs+0x16a/0x550\n irq_exit_rcu+0xaf/0xe0\n sysvec_apic_timer_interrupt+0x70/0x80\n \u003c/IRQ\u003e\n...\n\nAllocated by task 141:\n kasan_save_stack+0x24/0x50\n kasan_save_track+0x14/0x30\n __kasan_kmalloc+0x7f/0x90\n __kmalloc_node_track_caller_noprof+0x198/0x430\n devm_kmalloc+0x7b/0x1e0\n tc358743_probe+0xb7/0x610  i2c_device_probe+0x51d/0x880\n really_probe+0x1ca/0x5c0\n __driver_probe_device+0x248/0x310\n driver_probe_device+0x44/0x120\n __device_attach_driver+0x174/0x220\n bus_for_each_drv+0x100/0x190\n __device_attach+0x206/0x370\n bus_probe_device+0x123/0x170\n device_add+0xd25/0x1470\n i2c_new_client_device+0x7a0/0xcd0\n do_one_initcall+0x89/0x300\n do_init_module+0x29d/0x7f0\n load_module+0x4f48/0x69e0\n init_module_from_file+0xe4/0x150\n idempotent_init_module+0x320/0x670\n __x64_sys_finit_module+0xbd/0x120\n do_syscall_64+0xac/0x280\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFreed by task 141:\n kasan_save_stack+0x24/0x50\n kasan_save_track+0x14/0x30\n kasan_save_free_info+0x3a/0x60\n __kasan_slab_free+0x3f/0x50\n kfree+0x137/0x370\n release_nodes+0xa4/0x100\n devres_release_group+0x1b2/0x380\n i2c_device_probe+0x694/0x880\n really_probe+0x1ca/0x5c0\n __driver_probe_device+0x248/0x310\n driver_probe_device+0x44/0x120\n __device_attach_driver+0x174/0x220\n bus_for_each_drv+0x100/0x190\n __device_attach+0x206/0x370\n bus_probe_device+0x123/0x170\n device_add+0xd25/0x1470\n i2c_new_client_device+0x7a0/0xcd0\n do_one_initcall+0x89/0x300\n do_init_module+0x29d/0x7f0\n load_module+0x4f48/0x69e0\n init_module_from_file+0xe4/0x150\n idempotent_init_module+0x320/0x670\n __x64_sys_finit_module+0xbd/0x120\n do_syscall_64+0xac/0x280\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n...\n\nReplace timer_delete() with timer_delete_sync() and cancel_delayed_work()\nwith cancel_delayed_work_sync() to ensure proper termination of timer and\nwork items before resource cleanup.\n\nThis bug was initially identified through static analysis. For reproduction\nand testing, I created a functional emulation of the tc358743 device via a\nkernel module and introduced faults through the debugfs interface."
          }
        ],
        "id": "CVE-2025-39995",
        "lastModified": "2026-06-17T09:18:58.747",
        "metrics": {},
        "published": "2025-10-15T08:15:37.690",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/228d06c4cbfc750f1216a3fd91b4693b0766d2f6"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/2610617effb4454d2f1c434c011ccb5cc7140711"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/3d17701c156579969470e58b3a906511f8bc018d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/663faf1179db9663a3793c75e9bc869358bad910"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/70913586c717dd25cfbade7a418e92cc9c99398a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/79d10f4f21a92e459b2276a77be62c59c1502c9d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/9205fb6e617a1c596d9a9ad2a160ee696e09d520"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/f3f3f00bcabbd2ce0a77a2ac7a6797b8646bfd8b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/f92181c0e13cad9671d07b15be695a97fc2534a3"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Deferred"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:34:05+00:00",
      "cve": "CVE-2025-39995",
      "id": "CVE-2025-39995",
      "initial_release_date": "2025-10-15T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: media: i2c: tc358743: Fix use-after-free bugs caused by orphan timer in probe",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-39995.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.