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OESA-2025-2352 (CVE-2025-38680)

Vulnerability from osv_openeuler – Published: 2025-09-26 11:09 – Updated: 2026-08-06 11:09 – Source website
VLAI
Summary
kernel security update
Details

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

media: uvcvideo: Fix 1-byte out-of-bounds read in uvc_parse_format()

The buffer length check before calling uvc_parse_format() only ensured that the buffer has at least 3 bytes (buflen > 2), buf the function accesses buffer[3], requiring at least 4 bytes.

This can lead to an out-of-bounds read if the buffer has exactly 3 bytes.

Fix it by checking that the buffer has at least 4 bytes in uvc_parse_format().(CVE-2025-38680)

In the Linux kernel, the following vulnerability has been resolved:

media: dvb-frontends: dib7090p: fix null-ptr-deref in dib7090p_rw_on_apb()

In dib7090p_rw_on_apb, msg is controlled by user. When msg[0].buf is null and msg[0].len is zero, former checks on msg[0].buf would be passed. If accessing msg[0].buf[2] without sanity check, null pointer deref would happen. We add check on msg[0].len to prevent crash. Similar issue occurs when access msg[1].buf[0] and msg[1].buf[1].

Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")(CVE-2025-38694)

In the Linux kernel, the following vulnerability has been resolved:

scsi: lpfc: Check for hdwq null ptr when cleaning up lpfc_vport structure

If a call to lpfc_sli4_read_rev() from lpfc_sli4_hba_setup() fails, the resultant cleanup routine lpfc_sli4_vport_delete_fcp_xri_aborted() may occur before sli4_hba.hdwqs are allocated. This may result in a null pointer dereference when attempting to take the abts_io_buf_list_lock for the first hardware queue. Fix by adding a null ptr check on phba->sli4_hba.hdwq and early return because this situation means there must have been an error during port initialization.(CVE-2025-38695)

In the Linux kernel, the following vulnerability has been resolved:

vsock/virtio: Validate length in packet header before skb_put()

When receiving a vsock packet in the guest, only the virtqueue buffer size is validated prior to virtio_vsock_skb_rx_put(). Unfortunately, virtio_vsock_skb_rx_put() uses the length from the packet header as the length argument to skb_put(), potentially resulting in SKB overflow if the host has gone wonky.

Validate the length as advertised by the packet header before calling virtio_vsock_skb_rx_put().(CVE-2025-39718)

In the Linux kernel, the following vulnerability has been resolved:

net: bridge: fix soft lockup in br_multicast_query_expired()

When set multicast_query_interval to a large value, the local variable 'time' in br_multicast_send_query() may overflow. If the time is smaller than jiffies, the timer will expire immediately, and then call mod_timer() again, which creates a loop and may trigger the following soft lockup issue.

watchdog: BUG: soft lockup - CPU#1 stuck for 221s! [rb_consumer:66] CPU: 1 UID: 0 PID: 66 Comm: rb_consumer Not tainted 6.16.0+ #259 PREEMPT(none) Call Trace: <IRQ> __netdev_alloc_skb+0x2e/0x3a0 br_ip6_multicast_alloc_query+0x212/0x1b70 __br_multicast_send_query+0x376/0xac0 br_multicast_send_query+0x299/0x510 br_multicast_query_expired.constprop.0+0x16d/0x1b0 call_timer_fn+0x3b/0x2a0 __run_timers+0x619/0x950 run_timer_softirq+0x11c/0x220 handle_softirqs+0x18e/0x560 __irq_exit_rcu+0x158/0x1a0 sysvec_apic_timer_interrupt+0x76/0x90 </IRQ>

This issue can be reproduced with: ip link add br0 type bridge echo 1 > /sys/class/net/br0/bridge/multicast_querier echo 0xffffffffffffffff > /sys/class/net/br0/bridge/multicast_query_interval ip link set dev br0 up

The multicast_startup_query_interval can also cause this issue. Similar to the commit 99b40610956a ("net: bridge: mcast: add and enforce query interval minimum"), add check for the query interval maximum to fix this issue.(CVE-2025-39773)

In the Linux kernel, the following vulnerability has been resolved:

ftrace: Fix potential warning in trace_printk_seq during ftrace_dump

When calling ftrace_dump_one() concurrently with reading trace_pipe, a WARN_ON_ONCE() in trace_printk_seq() can be triggered due to a race condition.

The issue occurs because:

CPU0 (ftrace_dump) CPU1 (reader) echo z > /proc/sysrq-trigger

!trace_empty(&iter) trace_iterator_reset(&iter) <- len = size = 0 cat /sys/kernel/tracing/trace_pipe trace_find_next_entry_inc(&iter) __find_next_entry ring_buffer_empty_cpu <- all empty return NULL

trace_printk_seq(&iter.seq) WARN_ON_ONCE(s->seq.len >= s->seq.size)

In the context between trace_empty() and trace_find_next_entry_inc() during ftrace_dump, the ring buffer data was consumed by other readers. This caused trace_find_next_entry_inc to return NULL, failing to populate iter.seq. At this point, due to the prior trace_iterator_reset, both iter.seq.len and iter.seq.size were set to 0. Since they are equal, the WARN_ON_ONCE condition is triggered.

Move the trace_printk_seq() into the if block that checks to make sure the return value of trace_find_next_entry_inc() is non-NULL in ftrace_dump_one(), ensuring the 'iter.seq' is properly populated before subsequent operations.(CVE-2025-39813)

In the Linux kernel, the following vulnerability has been resolved:

trace/fgraph: Fix the warning caused by missing unregister notifier

This warning was triggered during testing on v6.16:

notifier callback ftrace_suspend_notifier_call already registered WARNING: CPU: 2 PID: 86 at kernel/notifier.c:23 notifier_chain_register+0x44/0xb0 ... Call Trace: <TASK> blocking_notifier_chain_register+0x34/0x60 register_ftrace_graph+0x330/0x410 ftrace_profile_write+0x1e9/0x340 vfs_write+0xf8/0x420 ? filp_flush+0x8a/0xa0 ? filp_close+0x1f/0x30 ? do_dup2+0xaf/0x160 ksys_write+0x65/0xe0 do_syscall_64+0xa4/0x260 entry_SYSCALL_64_after_hwframe+0x77/0x7f

When writing to the function_profile_enabled interface, the notifier was not unregistered after start_graph_tracing failed, causing a warning the next time function_profile_enabled was written.

Fixed by adding unregister_pm_notifier in the exception path.(CVE-2025-39829)

Severity
7.6 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "bpftool-6.6.0-111.0.0.114.oe2403sp1.aarch64.rpm",
          "bpftool-debuginfo-6.6.0-111.0.0.114.oe2403sp1.aarch64.rpm",
          "kernel-6.6.0-111.0.0.114.oe2403sp1.aarch64.rpm",
          "kernel-debuginfo-6.6.0-111.0.0.114.oe2403sp1.aarch64.rpm",
          "kernel-debugsource-6.6.0-111.0.0.114.oe2403sp1.aarch64.rpm",
          "kernel-devel-6.6.0-111.0.0.114.oe2403sp1.aarch64.rpm",
          "kernel-headers-6.6.0-111.0.0.114.oe2403sp1.aarch64.rpm",
          "kernel-source-6.6.0-111.0.0.114.oe2403sp1.aarch64.rpm",
          "kernel-tools-6.6.0-111.0.0.114.oe2403sp1.aarch64.rpm",
          "kernel-tools-debuginfo-6.6.0-111.0.0.114.oe2403sp1.aarch64.rpm",
          "kernel-tools-devel-6.6.0-111.0.0.114.oe2403sp1.aarch64.rpm",
          "perf-6.6.0-111.0.0.114.oe2403sp1.aarch64.rpm",
          "perf-debuginfo-6.6.0-111.0.0.114.oe2403sp1.aarch64.rpm",
          "python3-perf-6.6.0-111.0.0.114.oe2403sp1.aarch64.rpm",
          "python3-perf-debuginfo-6.6.0-111.0.0.114.oe2403sp1.aarch64.rpm"
        ],
        "src": [
          "kernel-6.6.0-111.0.0.114.oe2403sp1.src.rpm"
        ],
        "x86_64": [
          "bpftool-6.6.0-111.0.0.114.oe2403sp1.x86_64.rpm",
          "bpftool-debuginfo-6.6.0-111.0.0.114.oe2403sp1.x86_64.rpm",
          "kernel-6.6.0-111.0.0.114.oe2403sp1.x86_64.rpm",
          "kernel-debuginfo-6.6.0-111.0.0.114.oe2403sp1.x86_64.rpm",
          "kernel-debugsource-6.6.0-111.0.0.114.oe2403sp1.x86_64.rpm",
          "kernel-devel-6.6.0-111.0.0.114.oe2403sp1.x86_64.rpm",
          "kernel-headers-6.6.0-111.0.0.114.oe2403sp1.x86_64.rpm",
          "kernel-source-6.6.0-111.0.0.114.oe2403sp1.x86_64.rpm",
          "kernel-tools-6.6.0-111.0.0.114.oe2403sp1.x86_64.rpm",
          "kernel-tools-debuginfo-6.6.0-111.0.0.114.oe2403sp1.x86_64.rpm",
          "kernel-tools-devel-6.6.0-111.0.0.114.oe2403sp1.x86_64.rpm",
          "perf-6.6.0-111.0.0.114.oe2403sp1.x86_64.rpm",
          "perf-debuginfo-6.6.0-111.0.0.114.oe2403sp1.x86_64.rpm",
          "python3-perf-6.6.0-111.0.0.114.oe2403sp1.x86_64.rpm",
          "python3-perf-debuginfo-6.6.0-111.0.0.114.oe2403sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP1",
        "name": "kernel",
        "purl": "pkg:rpm/openEuler/kernel\u0026distro=openEuler-24.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.6.0-111.0.0.114.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nmedia: uvcvideo: Fix 1-byte out-of-bounds read in uvc_parse_format()\n\nThe buffer length check before calling uvc_parse_format() only ensured\nthat the buffer has at least 3 bytes (buflen \u0026gt; 2), buf the function\naccesses buffer[3], requiring at least 4 bytes.\n\nThis can lead to an out-of-bounds read if the buffer has exactly 3 bytes.\n\nFix it by checking that the buffer has at least 4 bytes in\nuvc_parse_format().(CVE-2025-38680)\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dvb-frontends: dib7090p: fix null-ptr-deref in dib7090p_rw_on_apb()\n\nIn dib7090p_rw_on_apb, msg is controlled by user. When msg[0].buf is null and\nmsg[0].len is zero, former checks on msg[0].buf would be passed. If accessing\nmsg[0].buf[2] without sanity check, null pointer deref would happen. We add\ncheck on msg[0].len to prevent crash. Similar issue occurs when access\nmsg[1].buf[0] and msg[1].buf[1].\n\nSimilar commit: commit 0ed554fd769a (\u0026quot;media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()\u0026quot;)(CVE-2025-38694)\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nscsi: lpfc: Check for hdwq null ptr when cleaning up lpfc_vport structure\n\nIf a call to lpfc_sli4_read_rev() from lpfc_sli4_hba_setup() fails, the\nresultant cleanup routine lpfc_sli4_vport_delete_fcp_xri_aborted() may\noccur before sli4_hba.hdwqs are allocated.  This may result in a null\npointer dereference when attempting to take the abts_io_buf_list_lock for\nthe first hardware queue.  Fix by adding a null ptr check on\nphba-\u0026gt;sli4_hba.hdwq and early return because this situation means there\nmust have been an error during port initialization.(CVE-2025-38695)\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: Validate length in packet header before skb_put()\n\nWhen receiving a vsock packet in the guest, only the virtqueue buffer\nsize is validated prior to virtio_vsock_skb_rx_put(). Unfortunately,\nvirtio_vsock_skb_rx_put() uses the length from the packet header as the\nlength argument to skb_put(), potentially resulting in SKB overflow if\nthe host has gone wonky.\n\nValidate the length as advertised by the packet header before calling\nvirtio_vsock_skb_rx_put().(CVE-2025-39718)\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet: bridge: fix soft lockup in br_multicast_query_expired()\n\nWhen set multicast_query_interval to a large value, the local variable\n\u0026apos;time\u0026apos; in br_multicast_send_query() may overflow. If the time is smaller\nthan jiffies, the timer will expire immediately, and then call mod_timer()\nagain, which creates a loop and may trigger the following soft lockup\nissue.\n\n  watchdog: BUG: soft lockup - CPU#1 stuck for 221s! [rb_consumer:66]\n  CPU: 1 UID: 0 PID: 66 Comm: rb_consumer Not tainted 6.16.0+ #259 PREEMPT(none)\n  Call Trace:\n   \u0026lt;IRQ\u0026gt;\n   __netdev_alloc_skb+0x2e/0x3a0\n   br_ip6_multicast_alloc_query+0x212/0x1b70\n   __br_multicast_send_query+0x376/0xac0\n   br_multicast_send_query+0x299/0x510\n   br_multicast_query_expired.constprop.0+0x16d/0x1b0\n   call_timer_fn+0x3b/0x2a0\n   __run_timers+0x619/0x950\n   run_timer_softirq+0x11c/0x220\n   handle_softirqs+0x18e/0x560\n   __irq_exit_rcu+0x158/0x1a0\n   sysvec_apic_timer_interrupt+0x76/0x90\n   \u0026lt;/IRQ\u0026gt;\n\nThis issue can be reproduced with:\n  ip link add br0 type bridge\n  echo 1 \u0026gt; /sys/class/net/br0/bridge/multicast_querier\n  echo 0xffffffffffffffff \u0026gt;\n  \t/sys/class/net/br0/bridge/multicast_query_interval\n  ip link set dev br0 up\n\nThe multicast_startup_query_interval can also cause this issue. Similar to\nthe commit 99b40610956a (\u0026quot;net: bridge: mcast: add and enforce query\ninterval minimum\u0026quot;), add check for the query interval maximum to fix this\nissue.(CVE-2025-39773)\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Fix potential warning in trace_printk_seq during ftrace_dump\n\nWhen calling ftrace_dump_one() concurrently with reading trace_pipe,\na WARN_ON_ONCE() in trace_printk_seq() can be triggered due to a race\ncondition.\n\nThe issue occurs because:\n\nCPU0 (ftrace_dump)                              CPU1 (reader)\necho z \u0026gt; /proc/sysrq-trigger\n\n!trace_empty(\u0026amp;iter)\ntrace_iterator_reset(\u0026amp;iter) \u0026lt;- len = size = 0\n                                                cat /sys/kernel/tracing/trace_pipe\ntrace_find_next_entry_inc(\u0026amp;iter)\n  __find_next_entry\n    ring_buffer_empty_cpu \u0026lt;- all empty\n  return NULL\n\ntrace_printk_seq(\u0026amp;iter.seq)\n  WARN_ON_ONCE(s-\u0026gt;seq.len \u0026gt;= s-\u0026gt;seq.size)\n\nIn the context between trace_empty() and trace_find_next_entry_inc()\nduring ftrace_dump, the ring buffer data was consumed by other readers.\nThis caused trace_find_next_entry_inc to return NULL, failing to populate\n`iter.seq`. At this point, due to the prior trace_iterator_reset, both\n`iter.seq.len` and `iter.seq.size` were set to 0. Since they are equal,\nthe WARN_ON_ONCE condition is triggered.\n\nMove the trace_printk_seq() into the if block that checks to make sure the\nreturn value of trace_find_next_entry_inc() is non-NULL in\nftrace_dump_one(), ensuring the \u0026apos;iter.seq\u0026apos; is properly populated before\nsubsequent operations.(CVE-2025-39813)\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ntrace/fgraph: Fix the warning caused by missing unregister notifier\n\nThis warning was triggered during testing on v6.16:\n\nnotifier callback ftrace_suspend_notifier_call already registered\nWARNING: CPU: 2 PID: 86 at kernel/notifier.c:23 notifier_chain_register+0x44/0xb0\n...\nCall Trace:\n \u0026lt;TASK\u0026gt;\n blocking_notifier_chain_register+0x34/0x60\n register_ftrace_graph+0x330/0x410\n ftrace_profile_write+0x1e9/0x340\n vfs_write+0xf8/0x420\n ? filp_flush+0x8a/0xa0\n ? filp_close+0x1f/0x30\n ? do_dup2+0xaf/0x160\n ksys_write+0x65/0xe0\n do_syscall_64+0xa4/0x260\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nWhen writing to the function_profile_enabled interface, the notifier was\nnot unregistered after start_graph_tracing failed, causing a warning the\nnext time function_profile_enabled was written.\n\nFixed by adding unregister_pm_notifier in the exception path.(CVE-2025-39829)",
  "id": "OESA-2025-2352",
  "modified": "2026-08-06T11:09:26Z",
  "published": "2025-09-26T11:09:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-2352"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38680"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38694"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38695"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39718"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39773"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39813"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39829"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "kernel security update",
  "upstream": [
    "CVE-2025-38680",
    "CVE-2025-38694",
    "CVE-2025-38695",
    "CVE-2025-39718",
    "CVE-2025-39773",
    "CVE-2025-39813",
    "CVE-2025-39829"
  ]
}



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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.

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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