fkie_cve-2025-40178
Vulnerability from fkie_nvd
Published
2025-11-12 22:15
Modified
2025-11-14 16:42
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: pid: Add a judgment for ns null in pid_nr_ns __task_pid_nr_ns ns = task_active_pid_ns(current); pid_nr_ns(rcu_dereference(*task_pid_ptr(task, type)), ns); if (pid && ns->level <= pid->level) { Sometimes null is returned for task_active_pid_ns. Then it will trigger kernel panic in pid_nr_ns. For example: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000058 Mem abort info: ESR = 0x0000000096000007 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x07: level 3 translation fault Data abort info: ISV = 0, ISS = 0x00000007, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 user pgtable: 4k pages, 39-bit VAs, pgdp=00000002175aa000 [0000000000000058] pgd=08000002175ab003, p4d=08000002175ab003, pud=08000002175ab003, pmd=08000002175be003, pte=0000000000000000 pstate: 834000c5 (Nzcv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : __task_pid_nr_ns+0x74/0xd0 lr : __task_pid_nr_ns+0x24/0xd0 sp : ffffffc08001bd10 x29: ffffffc08001bd10 x28: ffffffd4422b2000 x27: 0000000000000001 x26: ffffffd442821168 x25: ffffffd442821000 x24: 00000f89492eab31 x23: 00000000000000c0 x22: ffffff806f5693c0 x21: ffffff806f5693c0 x20: 0000000000000001 x19: 0000000000000000 x18: 0000000000000000 x17: 00000000529c6ef0 x16: 00000000529c6ef0 x15: 00000000023a1adc x14: 0000000000000003 x13: 00000000007ef6d8 x12: 001167c391c78800 x11: 00ffffffffffffff x10: 0000000000000000 x9 : 0000000000000001 x8 : ffffff80816fa3c0 x7 : 0000000000000000 x6 : 49534d702d535449 x5 : ffffffc080c4c2c0 x4 : ffffffd43ee128c8 x3 : ffffffd43ee124dc x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffffff806f5693c0 Call trace: __task_pid_nr_ns+0x74/0xd0 ... __handle_irq_event_percpu+0xd4/0x284 handle_irq_event+0x48/0xb0 handle_fasteoi_irq+0x160/0x2d8 generic_handle_domain_irq+0x44/0x60 gic_handle_irq+0x4c/0x114 call_on_irq_stack+0x3c/0x74 do_interrupt_handler+0x4c/0x84 el1_interrupt+0x34/0x58 el1h_64_irq_handler+0x18/0x24 el1h_64_irq+0x68/0x6c account_kernel_stack+0x60/0x144 exit_task_stack_account+0x1c/0x80 do_exit+0x7e4/0xaf8 ... get_signal+0x7bc/0x8d8 do_notify_resume+0x128/0x828 el0_svc+0x6c/0x70 el0t_64_sync_handler+0x68/0xbc el0t_64_sync+0x1a8/0x1ac Code: 35fffe54 911a02a8 f9400108 b4000128 (b9405a69) ---[ end trace 0000000000000000 ]--- Kernel panic - not syncing: Oops: Fatal exception in interrupt
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/006568ab4c5ca2309ceb36fa553e390b4aa9c0c7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/09d227c59d97efda7d5cc878a4335a6b2bb224c2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2076b916bf41be48799d1443df0f8fc75d12ccd0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/75dbc029c5359438be4a6f908bfbfdab969af776
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a0212978af1825b37da0b453b94d9b0e5af11478
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c2d09d724856b6f82ab688f65fc1ce833bb56333
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c3b654021931dc806ba086c549e8756c3f204a67
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e10c36a771c5cc910abd9fe4aa9033ee32a47c38
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npid: Add a judgment for ns null in pid_nr_ns\n\n__task_pid_nr_ns\n        ns = task_active_pid_ns(current);\n        pid_nr_ns(rcu_dereference(*task_pid_ptr(task, type)), ns);\n                if (pid \u0026\u0026 ns-\u003elevel \u003c= pid-\u003elevel) {\n\nSometimes null is returned for task_active_pid_ns. Then it will trigger kernel panic in pid_nr_ns.\n\nFor example:\n\tUnable to handle kernel NULL pointer dereference at virtual address 0000000000000058\n\tMem abort info:\n\tESR = 0x0000000096000007\n\tEC = 0x25: DABT (current EL), IL = 32 bits\n\tSET = 0, FnV = 0\n\tEA = 0, S1PTW = 0\n\tFSC = 0x07: level 3 translation fault\n\tData abort info:\n\tISV = 0, ISS = 0x00000007, ISS2 = 0x00000000\n\tCM = 0, WnR = 0, TnD = 0, TagAccess = 0\n\tGCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n\tuser pgtable: 4k pages, 39-bit VAs, pgdp=00000002175aa000\n\t[0000000000000058] pgd=08000002175ab003, p4d=08000002175ab003, pud=08000002175ab003, pmd=08000002175be003, pte=0000000000000000\n\tpstate: 834000c5 (Nzcv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\n\tpc : __task_pid_nr_ns+0x74/0xd0\n\tlr : __task_pid_nr_ns+0x24/0xd0\n\tsp : ffffffc08001bd10\n\tx29: ffffffc08001bd10 x28: ffffffd4422b2000 x27: 0000000000000001\n\tx26: ffffffd442821168 x25: ffffffd442821000 x24: 00000f89492eab31\n\tx23: 00000000000000c0 x22: ffffff806f5693c0 x21: ffffff806f5693c0\n\tx20: 0000000000000001 x19: 0000000000000000 x18: 0000000000000000\n\tx17: 00000000529c6ef0 x16: 00000000529c6ef0 x15: 00000000023a1adc\n\tx14: 0000000000000003 x13: 00000000007ef6d8 x12: 001167c391c78800\n\tx11: 00ffffffffffffff x10: 0000000000000000 x9 : 0000000000000001\n\tx8 : ffffff80816fa3c0 x7 : 0000000000000000 x6 : 49534d702d535449\n\tx5 : ffffffc080c4c2c0 x4 : ffffffd43ee128c8 x3 : ffffffd43ee124dc\n\tx2 : 0000000000000000 x1 : 0000000000000001 x0 : ffffff806f5693c0\n\tCall trace:\n\t__task_pid_nr_ns+0x74/0xd0\n\t...\n\t__handle_irq_event_percpu+0xd4/0x284\n\thandle_irq_event+0x48/0xb0\n\thandle_fasteoi_irq+0x160/0x2d8\n\tgeneric_handle_domain_irq+0x44/0x60\n\tgic_handle_irq+0x4c/0x114\n\tcall_on_irq_stack+0x3c/0x74\n\tdo_interrupt_handler+0x4c/0x84\n\tel1_interrupt+0x34/0x58\n\tel1h_64_irq_handler+0x18/0x24\n\tel1h_64_irq+0x68/0x6c\n\taccount_kernel_stack+0x60/0x144\n\texit_task_stack_account+0x1c/0x80\n\tdo_exit+0x7e4/0xaf8\n\t...\n\tget_signal+0x7bc/0x8d8\n\tdo_notify_resume+0x128/0x828\n\tel0_svc+0x6c/0x70\n\tel0t_64_sync_handler+0x68/0xbc\n\tel0t_64_sync+0x1a8/0x1ac\n\tCode: 35fffe54 911a02a8 f9400108 b4000128 (b9405a69)\n\t---[ end trace 0000000000000000 ]---\n\tKernel panic - not syncing: Oops: Fatal exception in interrupt"
    }
  ],
  "id": "CVE-2025-40178",
  "lastModified": "2025-11-14T16:42:30.503",
  "metrics": {},
  "published": "2025-11-12T22:15:44.480",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/006568ab4c5ca2309ceb36fa553e390b4aa9c0c7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/09d227c59d97efda7d5cc878a4335a6b2bb224c2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2076b916bf41be48799d1443df0f8fc75d12ccd0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/75dbc029c5359438be4a6f908bfbfdab969af776"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a0212978af1825b37da0b453b94d9b0e5af11478"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c2d09d724856b6f82ab688f65fc1ce833bb56333"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c3b654021931dc806ba086c549e8756c3f204a67"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e10c36a771c5cc910abd9fe4aa9033ee32a47c38"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.