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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
    <description>Contains only the most 10 recent entries.</description>
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    <lastBuildDate>Wed, 30 Sep 2026 10:47:16 +0000</lastBuildDate>
    <item>
      <title>CVE-2025-39885 — ocfs2: fix recursive semaphore deadlock in fiemap call</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2025-39885</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;ocfs2: fix recursive semaphore deadlock in fiemap call&lt;/p&gt;
&lt;p&gt;syzbot detected a OCFS2 hang due to a recursive semaphore on a
FS_IOC_FIEMAP of the extent list on a specially crafted mmap file.&lt;/p&gt;
&lt;p&gt;context_switch kernel/sched/core.c:5357 [inline]
   __schedule+0x1798/0x4cc0 kernel/sched/core.c:6961
   __schedule_loop kernel/sched/core.c:7043 [inline]
   schedule+0x165/0x360 kernel/sched/core.c:7058
   schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
   rwsem_down_write_slowpath+0x872/0xfe0 kernel/locking/rwsem.c:1185
   __down_write_common kernel/locking/rwsem.c:1317 [inline]
   __down_write kernel/locking/rwsem.c:1326 [inline]
   down_write+0x1ab/0x1f0 kernel/locking/rwsem.c:1591
   ocfs2_page_mkwrite+0x2ff/0xc40 fs/ocfs2/mmap.c:142
   do_page_mkwrite+0x14d/0x310 mm/memory.c:3361
   wp_page_shared mm/memory.c:3762 [inline]
   do_wp_page+0x268d/0x5800 mm/memory.c:3981
   handle_pte_fault mm/memory.c:6068 [inline]
   __handle_mm_fault+0x1033/0x5440 mm/memory.c:6195
   handle_mm_fault+0x40a/0x8e0 mm/memory.c:6364
   do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1387
   handle_page_fault arch/x86/mm/fault.c:1476 [inline]
   exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532
   asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline]
RIP: 0010:raw_copy_to_user arch/x86/include/asm/uaccess_64.h:147 [inline]
RIP: 0010:_inline…&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;ocfs2: fix recursive semaphore deadlock in fiemap call&lt;/p&gt;
&lt;p&gt;syzbot detected a OCFS2 hang due to a recursive semaphore on a
FS_IOC_FIEMAP of the extent list on a specially crafted mmap file.&lt;/p&gt;
&lt;p&gt;context_switch kernel/sched/core.c:5357 [inline]
   __schedule+0x1798/0x4cc0 kernel/sched/core.c:6961
   __schedule_loop kernel/sched/core.c:7043 [inline]
   schedule+0x165/0x360 kernel/sched/core.c:7058
   schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
   rwsem_down_write_slowpath+0x872/0xfe0 kernel/locking/rwsem.c:1185
   __down_write_common kernel/locking/rwsem.c:1317 [inline]
   __down_write kernel/locking/rwsem.c:1326 [inline]
   down_write+0x1ab/0x1f0 kernel/locking/rwsem.c:1591
   ocfs2_page_mkwrite+0x2ff/0xc40 fs/ocfs2/mmap.c:142
   do_page_mkwrite+0x14d/0x310 mm/memory.c:3361
   wp_page_shared mm/memory.c:3762 [inline]
   do_wp_page+0x268d/0x5800 mm/memory.c:3981
   handle_pte_fault mm/memory.c:6068 [inline]
   __handle_mm_fault+0x1033/0x5440 mm/memory.c:6195
   handle_mm_fault+0x40a/0x8e0 mm/memory.c:6364
   do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1387
   handle_page_fault arch/x86/mm/fault.c:1476 [inline]
   exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532
   asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline]
RIP: 0010:raw_copy_to_user arch/x86/include/asm/uaccess_64.h:147 [inline]
RIP: 0010:_inline…&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2025-39885</guid>
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