{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-71162 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-71162 is a high-severity use after free vulnerability in Linux kernel, published on 25 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-71162 and fix it if it is affected.\n\nWhat it is: CVE-2025-71162 is a high-severity use after free vulnerability in Linux kernel, published on 25 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-71162 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2025-71162/ (Markdown: https://insights.sbomify.com/CVE-2025-71162/index.md)","id":"CVE-2025-71162","markdown":"https://insights.sbomify.com/CVE-2025-71162/index.md","name":"CVE-2025-71162","record":{"aliases":["AZL-77313","BELL-CVE-2025-71162","DEBIAN-CVE-2025-71162","GHSA-g96x-q37f-x894","ROOT-OS-DEBIAN-11-CVE-2025-71162","ROOT-OS-DEBIAN-12-CVE-2025-71162","ROOT-OS-DEBIAN-13-CVE-2025-71162","ROOT-OS-UBUNTU-2204-CVE-2025-71162","ROOT-OS-UBUNTU-2404-CVE-2025-71162","UBUNTU-CVE-2025-71162"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"low_privilege","summary":"A use-after-free in the Tegra ADMA driver allows attackers to cause a system crash or potentially execute code via race conditions during audio stream termination.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: tegra-adma: Fix use-after-free\n\nA use-after-free bug exists in the Tegra ADMA driver when audio streams\nare terminated, particularly during XRUN conditions. The issue occurs\nwhen the DMA buffer is freed by tegra_adma_terminate_all() before the\nvchan completion tasklet finishes accessing it.\n\nThe race condition follows this sequence:\n\n  1. DMA transfer completes, triggering an interrupt that schedules the\n     completion tasklet (tasklet has not executed yet)\n  2. Audio playback stops, calling tegra_adma_terminate_all() which\n     frees the DMA buffer memory via kfree()\n  3. The scheduled tasklet finally executes, calling vchan_complete()\n     which attempts to access the already-freed memory\n\nSince tasklets can execute at any time after being scheduled, there is\nno guarantee that the buffer will remain valid when vchan_complete()\nruns.\n\nFix this by properly synchronizing the virtual channel completion:\n - Calling vchan_terminate_vdesc() in tegra_adma_stop() to mark the\n   descriptors as terminated instead of freeing the descriptor.\n - Add the callback tegra_adma_synchronize() that calls\n   vchan_synchronize() which kills any pending tasklets and frees any\n   terminated descriptors.\n\nCrash logs:\n[  337.427523] BUG: KASAN: use-after-free in vchan_complete+0x124/0x3b0\n[  337.427544] Read of size 8 at addr ffff000132055428 by task swapper/0/0\n\n[  337.427562] Call trace:\n[  337.427564]  dump_backtrace+0x0/0x320\n[  337.427571]  show_stack+0x20/0x30\n[  337.427575]  dump_stack_lvl+0x68/0x84\n[  337.427584]  print_address_description.constprop.0+0x74/0x2b8\n[  337.427590]  kasan_report+0x1f4/0x210\n[  337.427598]  __asan_load8+0xa0/0xd0\n[  337.427603]  vchan_complete+0x124/0x3b0\n[  337.427609]  tasklet_action_common.constprop.0+0x190/0x1d0\n[  337.427617]  tasklet_action+0x30/0x40\n[  337.427623]  __do_softirq+0x1a0/0x5c4\n[  337.427628]  irq_exit+0x110/0x140\n[  337.427633]  handle_domain_irq+0xa4/0xe0\n[  337.427640]  gic_handle_irq+0x64/0x160\n[  337.427644]  call_on_irq_stack+0x20/0x4c\n[  337.427649]  do_interrupt_handler+0x7c/0x90\n[  337.427654]  el1_interrupt+0x30/0x80\n[  337.427659]  el1h_64_irq_handler+0x18/0x30\n[  337.427663]  el1h_64_irq+0x7c/0x80\n[  337.427667]  cpuidle_enter_state+0xe4/0x540\n[  337.427674]  cpuidle_enter+0x54/0x80\n[  337.427679]  do_idle+0x2e0/0x380\n[  337.427685]  cpu_startup_entry+0x2c/0x70\n[  337.427690]  rest_init+0x114/0x130\n[  337.427695]  arch_call_rest_init+0x18/0x24\n[  337.427702]  start_kernel+0x380/0x3b4\n[  337.427706]  __primary_switched+0xc0/0xc8","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"dmaengine: tegra-adma: Fix use-after-free","id":"CVE-2025-71162","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2025"},"n_packages":0,"n_references":7,"next":{"headline":"dmaengine: idxd: fix device leaks on compat bind and unbind","id":"CVE-2025-71163"},"packages":[],"prev":{"headline":"dm-verity: disable recursive forward error correction","id":"CVE-2025-71161"},"products":["Linux"],"published":"2026-01-25","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Linux"]},"summary":"A use-after-free in the Tegra ADMA driver allows attackers to cause a system crash or potentially execute code via race conditions during audio stream termination.","url":"https://insights.sbomify.com/CVE-2025-71162/"}