CVE-2025-39731 (GCVE-0-2025-39731)

Vulnerability from cvelistv5 – Published: 2025-09-07 15:16 – Updated: 2026-05-11 21:35
VLAI
Title
f2fs: vm_unmap_ram() may be called from an invalid context
Summary
In the Linux kernel, the following vulnerability has been resolved: f2fs: vm_unmap_ram() may be called from an invalid context When testing F2FS with xfstests using UFS backed virtual disks the kernel complains sometimes that f2fs_release_decomp_mem() calls vm_unmap_ram() from an invalid context. Example trace from f2fs/007 test: f2fs/007 5s ... [12:59:38][ 8.902525] run fstests f2fs/007 [ 11.468026] BUG: sleeping function called from invalid context at mm/vmalloc.c:2978 [ 11.471849] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 68, name: irq/22-ufshcd [ 11.475357] preempt_count: 1, expected: 0 [ 11.476970] RCU nest depth: 0, expected: 0 [ 11.478531] CPU: 0 UID: 0 PID: 68 Comm: irq/22-ufshcd Tainted: G W 6.16.0-rc5-xfstests-ufs-g40f92e79b0aa #9 PREEMPT(none) [ 11.478535] Tainted: [W]=WARN [ 11.478536] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.478537] Call Trace: [ 11.478543] <TASK> [ 11.478545] dump_stack_lvl+0x4e/0x70 [ 11.478554] __might_resched.cold+0xaf/0xbe [ 11.478557] vm_unmap_ram+0x21/0xb0 [ 11.478560] f2fs_release_decomp_mem+0x59/0x80 [ 11.478563] f2fs_free_dic+0x18/0x1a0 [ 11.478565] f2fs_finish_read_bio+0xd7/0x290 [ 11.478570] blk_update_request+0xec/0x3b0 [ 11.478574] ? sbitmap_queue_clear+0x3b/0x60 [ 11.478576] scsi_end_request+0x27/0x1a0 [ 11.478582] scsi_io_completion+0x40/0x300 [ 11.478583] ufshcd_mcq_poll_cqe_lock+0xa3/0xe0 [ 11.478588] ufshcd_sl_intr+0x194/0x1f0 [ 11.478592] ufshcd_threaded_intr+0x68/0xb0 [ 11.478594] ? __pfx_irq_thread_fn+0x10/0x10 [ 11.478599] irq_thread_fn+0x20/0x60 [ 11.478602] ? __pfx_irq_thread_fn+0x10/0x10 [ 11.478603] irq_thread+0xb9/0x180 [ 11.478605] ? __pfx_irq_thread_dtor+0x10/0x10 [ 11.478607] ? __pfx_irq_thread+0x10/0x10 [ 11.478609] kthread+0x10a/0x230 [ 11.478614] ? __pfx_kthread+0x10/0x10 [ 11.478615] ret_from_fork+0x7e/0xd0 [ 11.478619] ? __pfx_kthread+0x10/0x10 [ 11.478621] ret_from_fork_asm+0x1a/0x30 [ 11.478623] </TASK> This patch modifies in_task() check inside f2fs_read_end_io() to also check if interrupts are disabled. This ensures that pages are unmapped asynchronously in an interrupt handler.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: bff139b49d9f70c1ac5384aac94554846aa834de , < eb69e69a5ae6c8350957893b5f68bd55b1565fb2 (git)
Affected: bff139b49d9f70c1ac5384aac94554846aa834de , < 1023836d1b9465593c8746f97d608da32958785f (git)
Affected: bff139b49d9f70c1ac5384aac94554846aa834de , < 0fe7976b62546f1e95eebfe9879925e9aa22b7a8 (git)
Affected: bff139b49d9f70c1ac5384aac94554846aa834de , < 411e00f44e2e1a7fdb526013b25a7f0ed22a0947 (git)
Affected: bff139b49d9f70c1ac5384aac94554846aa834de , < 18eea36f4f460ead3750ed4afe5496f7ce55f99e (git)
Affected: bff139b49d9f70c1ac5384aac94554846aa834de , < 08a7efc5b02a0620ae16aa9584060e980a69cb55 (git)
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Linux Linux Affected: 6.0
Unaffected: 0 , < 6.0 (semver)
Unaffected: 6.1.148 , ≤ 6.1.* (semver)
Unaffected: 6.6.102 , ≤ 6.6.* (semver)
Unaffected: 6.12.42 , ≤ 6.12.* (semver)
Unaffected: 6.15.10 , ≤ 6.15.* (semver)
Unaffected: 6.16.1 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: vm_unmap_ram() may be called from an invalid context\n\nWhen testing F2FS with xfstests using UFS backed virtual disks the\nkernel complains sometimes that f2fs_release_decomp_mem() calls\nvm_unmap_ram() from an invalid context. Example trace from\nf2fs/007 test:\n\nf2fs/007 5s ...  [12:59:38][    8.902525] run fstests f2fs/007\n[   11.468026] BUG: sleeping function called from invalid context at mm/vmalloc.c:2978\n[   11.471849] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 68, name: irq/22-ufshcd\n[   11.475357] preempt_count: 1, expected: 0\n[   11.476970] RCU nest depth: 0, expected: 0\n[   11.478531] CPU: 0 UID: 0 PID: 68 Comm: irq/22-ufshcd Tainted: G        W           6.16.0-rc5-xfstests-ufs-g40f92e79b0aa #9 PREEMPT(none)\n[   11.478535] Tainted: [W]=WARN\n[   11.478536] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[   11.478537] Call Trace:\n[   11.478543]  \u003cTASK\u003e\n[   11.478545]  dump_stack_lvl+0x4e/0x70\n[   11.478554]  __might_resched.cold+0xaf/0xbe\n[   11.478557]  vm_unmap_ram+0x21/0xb0\n[   11.478560]  f2fs_release_decomp_mem+0x59/0x80\n[   11.478563]  f2fs_free_dic+0x18/0x1a0\n[   11.478565]  f2fs_finish_read_bio+0xd7/0x290\n[   11.478570]  blk_update_request+0xec/0x3b0\n[   11.478574]  ? sbitmap_queue_clear+0x3b/0x60\n[   11.478576]  scsi_end_request+0x27/0x1a0\n[   11.478582]  scsi_io_completion+0x40/0x300\n[   11.478583]  ufshcd_mcq_poll_cqe_lock+0xa3/0xe0\n[   11.478588]  ufshcd_sl_intr+0x194/0x1f0\n[   11.478592]  ufshcd_threaded_intr+0x68/0xb0\n[   11.478594]  ? __pfx_irq_thread_fn+0x10/0x10\n[   11.478599]  irq_thread_fn+0x20/0x60\n[   11.478602]  ? __pfx_irq_thread_fn+0x10/0x10\n[   11.478603]  irq_thread+0xb9/0x180\n[   11.478605]  ? __pfx_irq_thread_dtor+0x10/0x10\n[   11.478607]  ? __pfx_irq_thread+0x10/0x10\n[   11.478609]  kthread+0x10a/0x230\n[   11.478614]  ? __pfx_kthread+0x10/0x10\n[   11.478615]  ret_from_fork+0x7e/0xd0\n[   11.478619]  ? __pfx_kthread+0x10/0x10\n[   11.478621]  ret_from_fork_asm+0x1a/0x30\n[   11.478623]  \u003c/TASK\u003e\n\nThis patch modifies in_task() check inside f2fs_read_end_io() to also\ncheck if interrupts are disabled. This ensures that pages are unmapped\nasynchronously in an interrupt handler."
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          "url": "https://git.kernel.org/stable/c/1023836d1b9465593c8746f97d608da32958785f"
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        {
          "url": "https://git.kernel.org/stable/c/08a7efc5b02a0620ae16aa9584060e980a69cb55"
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    "dateReserved": "2025-04-16T07:20:57.118Z",
    "dateUpdated": "2026-05-11T21:35:10.902Z",
    "state": "PUBLISHED"
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      "date": "2026-05-27",
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[12:59:38][    8.902525] run fstests f2fs/007\\n[   11.468026] BUG: sleeping function called from invalid context at mm/vmalloc.c:2978\\n[   11.471849] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 68, name: irq/22-ufshcd\\n[   11.475357] preempt_count: 1, expected: 0\\n[   11.476970] RCU nest depth: 0, expected: 0\\n[   11.478531] CPU: 0 UID: 0 PID: 68 Comm: irq/22-ufshcd Tainted: G        W           6.16.0-rc5-xfstests-ufs-g40f92e79b0aa #9 PREEMPT(none)\\n[   11.478535] Tainted: [W]=WARN\\n[   11.478536] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\\n[   11.478537] Call Trace:\\n[   11.478543]  \u003cTASK\u003e\\n[   11.478545]  dump_stack_lvl+0x4e/0x70\\n[   11.478554]  __might_resched.cold+0xaf/0xbe\\n[   11.478557]  vm_unmap_ram+0x21/0xb0\\n[   11.478560]  f2fs_release_decomp_mem+0x59/0x80\\n[   11.478563]  f2fs_free_dic+0x18/0x1a0\\n[   11.478565]  f2fs_finish_read_bio+0xd7/0x290\\n[   11.478570]  blk_update_request+0xec/0x3b0\\n[   11.478574]  ? sbitmap_queue_clear+0x3b/0x60\\n[   11.478576]  scsi_end_request+0x27/0x1a0\\n[   11.478582]  scsi_io_completion+0x40/0x300\\n[   11.478583]  ufshcd_mcq_poll_cqe_lock+0xa3/0xe0\\n[   11.478588]  ufshcd_sl_intr+0x194/0x1f0\\n[   11.478592]  ufshcd_threaded_intr+0x68/0xb0\\n[   11.478594]  ? __pfx_irq_thread_fn+0x10/0x10\\n[   11.478599]  irq_thread_fn+0x20/0x60\\n[   11.478602]  ? __pfx_irq_thread_fn+0x10/0x10\\n[   11.478603]  irq_thread+0xb9/0x180\\n[   11.478605]  ? __pfx_irq_thread_dtor+0x10/0x10\\n[   11.478607]  ? __pfx_irq_thread+0x10/0x10\\n[   11.478609]  kthread+0x10a/0x230\\n[   11.478614]  ? __pfx_kthread+0x10/0x10\\n[   11.478615]  ret_from_fork+0x7e/0xd0\\n[   11.478619]  ? __pfx_kthread+0x10/0x10\\n[   11.478621]  ret_from_fork_asm+0x1a/0x30\\n[   11.478623]  \u003c/TASK\u003e\\n\\nThis patch modifies in_task() check inside f2fs_read_end_io() to also\\ncheck if interrupts are disabled. This ensures that pages are unmapped\\nasynchronously in an interrupt handler.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.0\",\"versionEndExcluding\":\"6.1.148\",\"matchCriteriaId\":\"1ABDE8F3-EFBD-48CA-9348-420BDD90A9D8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.102\",\"matchCriteriaId\":\"DD6EDB96-08AC-49D8-A1A9-4D2140C49BC7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.42\",\"matchCriteriaId\":\"EA7AA5E6-4376-4A85-A021-6ACC5FF801C3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.15.10\",\"matchCriteriaId\":\"5890C690-B295-40C2-9121-FF5F987E5142\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.16\",\"versionEndExcluding\":\"6.16.1\",\"matchCriteriaId\":\"58182352-D7DF-4CC9-841E-03C1D852C3FB\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FA6FEEC2-9F11-4643-8827-749718254FED\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/08a7efc5b02a0620ae16aa9584060e980a69cb55\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/0fe7976b62546f1e95eebfe9879925e9aa22b7a8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1023836d1b9465593c8746f97d608da32958785f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/18eea36f4f460ead3750ed4afe5496f7ce55f99e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/411e00f44e2e1a7fdb526013b25a7f0ed22a0947\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/eb69e69a5ae6c8350957893b5f68bd55b1565fb2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


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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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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.