CVE-2025-38359 (GCVE-0-2025-38359)
Vulnerability from cvelistv5
Published
2025-07-25 12:47
Modified
2025-07-28 04:19
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
s390/mm: Fix in_atomic() handling in do_secure_storage_access()
Kernel user spaces accesses to not exported pages in atomic context
incorrectly try to resolve the page fault.
With debug options enabled call traces like this can be seen:
BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1523
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 419074, name: qemu-system-s39
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
Preemption disabled at:
[<00000383ea47cfa2>] copy_page_from_iter_atomic+0xa2/0x8a0
CPU: 12 UID: 0 PID: 419074 Comm: qemu-system-s39
Tainted: G W 6.16.0-20250531.rc0.git0.69b3a602feac.63.fc42.s390x+debug #1 PREEMPT
Tainted: [W]=WARN
Hardware name: IBM 3931 A01 703 (LPAR)
Call Trace:
[<00000383e990d282>] dump_stack_lvl+0xa2/0xe8
[<00000383e99bf152>] __might_resched+0x292/0x2d0
[<00000383eaa7c374>] down_read+0x34/0x2d0
[<00000383e99432f8>] do_secure_storage_access+0x108/0x360
[<00000383eaa724b0>] __do_pgm_check+0x130/0x220
[<00000383eaa842e4>] pgm_check_handler+0x114/0x160
[<00000383ea47d028>] copy_page_from_iter_atomic+0x128/0x8a0
([<00000383ea47d016>] copy_page_from_iter_atomic+0x116/0x8a0)
[<00000383e9c45eae>] generic_perform_write+0x16e/0x310
[<00000383e9eb87f4>] ext4_buffered_write_iter+0x84/0x160
[<00000383e9da0de4>] vfs_write+0x1c4/0x460
[<00000383e9da123c>] ksys_write+0x7c/0x100
[<00000383eaa7284e>] __do_syscall+0x15e/0x280
[<00000383eaa8417e>] system_call+0x6e/0x90
INFO: lockdep is turned off.
It is not allowed to take the mmap_lock while in atomic context. Therefore
handle such a secure storage access fault as if the accessed page is not
mapped: the uaccess function will return -EFAULT, and the caller has to
deal with this. Usually this means that the access is retried in process
context, which allows to resolve the page fault (or in this case export the
page).
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"arch/s390/mm/fault.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "d2e317dfd2d1fe416c77315d17c5d57dbe374915",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "11709abccf93b08adde95ef313c300b0d4bc28f1",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"arch/s390/mm/fault.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"version": "6.15.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.15.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/mm: Fix in_atomic() handling in do_secure_storage_access()\n\nKernel user spaces accesses to not exported pages in atomic context\nincorrectly try to resolve the page fault.\nWith debug options enabled call traces like this can be seen:\n\nBUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1523\nin_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 419074, name: qemu-system-s39\npreempt_count: 1, expected: 0\nRCU nest depth: 0, expected: 0\nINFO: lockdep is turned off.\nPreemption disabled at:\n[\u003c00000383ea47cfa2\u003e] copy_page_from_iter_atomic+0xa2/0x8a0\nCPU: 12 UID: 0 PID: 419074 Comm: qemu-system-s39\nTainted: G W 6.16.0-20250531.rc0.git0.69b3a602feac.63.fc42.s390x+debug #1 PREEMPT\nTainted: [W]=WARN\nHardware name: IBM 3931 A01 703 (LPAR)\nCall Trace:\n [\u003c00000383e990d282\u003e] dump_stack_lvl+0xa2/0xe8\n [\u003c00000383e99bf152\u003e] __might_resched+0x292/0x2d0\n [\u003c00000383eaa7c374\u003e] down_read+0x34/0x2d0\n [\u003c00000383e99432f8\u003e] do_secure_storage_access+0x108/0x360\n [\u003c00000383eaa724b0\u003e] __do_pgm_check+0x130/0x220\n [\u003c00000383eaa842e4\u003e] pgm_check_handler+0x114/0x160\n [\u003c00000383ea47d028\u003e] copy_page_from_iter_atomic+0x128/0x8a0\n([\u003c00000383ea47d016\u003e] copy_page_from_iter_atomic+0x116/0x8a0)\n [\u003c00000383e9c45eae\u003e] generic_perform_write+0x16e/0x310\n [\u003c00000383e9eb87f4\u003e] ext4_buffered_write_iter+0x84/0x160\n [\u003c00000383e9da0de4\u003e] vfs_write+0x1c4/0x460\n [\u003c00000383e9da123c\u003e] ksys_write+0x7c/0x100\n [\u003c00000383eaa7284e\u003e] __do_syscall+0x15e/0x280\n [\u003c00000383eaa8417e\u003e] system_call+0x6e/0x90\nINFO: lockdep is turned off.\n\nIt is not allowed to take the mmap_lock while in atomic context. Therefore\nhandle such a secure storage access fault as if the accessed page is not\nmapped: the uaccess function will return -EFAULT, and the caller has to\ndeal with this. Usually this means that the access is retried in process\ncontext, which allows to resolve the page fault (or in this case export the\npage)."
}
],
"providerMetadata": {
"dateUpdated": "2025-07-28T04:19:52.197Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/d2e317dfd2d1fe416c77315d17c5d57dbe374915"
},
{
"url": "https://git.kernel.org/stable/c/11709abccf93b08adde95ef313c300b0d4bc28f1"
}
],
"title": "s390/mm: Fix in_atomic() handling in do_secure_storage_access()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38359",
"datePublished": "2025-07-25T12:47:30.441Z",
"dateReserved": "2025-04-16T04:51:24.007Z",
"dateUpdated": "2025-07-28T04:19:52.197Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-38359\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-25T13:15:24.687\",\"lastModified\":\"2025-07-25T15:29:19.837\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ns390/mm: Fix in_atomic() handling in do_secure_storage_access()\\n\\nKernel user spaces accesses to not exported pages in atomic context\\nincorrectly try to resolve the page fault.\\nWith debug options enabled call traces like this can be seen:\\n\\nBUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1523\\nin_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 419074, name: qemu-system-s39\\npreempt_count: 1, expected: 0\\nRCU nest depth: 0, expected: 0\\nINFO: lockdep is turned off.\\nPreemption disabled at:\\n[\u003c00000383ea47cfa2\u003e] copy_page_from_iter_atomic+0xa2/0x8a0\\nCPU: 12 UID: 0 PID: 419074 Comm: qemu-system-s39\\nTainted: G W 6.16.0-20250531.rc0.git0.69b3a602feac.63.fc42.s390x+debug #1 PREEMPT\\nTainted: [W]=WARN\\nHardware name: IBM 3931 A01 703 (LPAR)\\nCall Trace:\\n [\u003c00000383e990d282\u003e] dump_stack_lvl+0xa2/0xe8\\n [\u003c00000383e99bf152\u003e] __might_resched+0x292/0x2d0\\n [\u003c00000383eaa7c374\u003e] down_read+0x34/0x2d0\\n [\u003c00000383e99432f8\u003e] do_secure_storage_access+0x108/0x360\\n [\u003c00000383eaa724b0\u003e] __do_pgm_check+0x130/0x220\\n [\u003c00000383eaa842e4\u003e] pgm_check_handler+0x114/0x160\\n [\u003c00000383ea47d028\u003e] copy_page_from_iter_atomic+0x128/0x8a0\\n([\u003c00000383ea47d016\u003e] copy_page_from_iter_atomic+0x116/0x8a0)\\n [\u003c00000383e9c45eae\u003e] generic_perform_write+0x16e/0x310\\n [\u003c00000383e9eb87f4\u003e] ext4_buffered_write_iter+0x84/0x160\\n [\u003c00000383e9da0de4\u003e] vfs_write+0x1c4/0x460\\n [\u003c00000383e9da123c\u003e] ksys_write+0x7c/0x100\\n [\u003c00000383eaa7284e\u003e] __do_syscall+0x15e/0x280\\n [\u003c00000383eaa8417e\u003e] system_call+0x6e/0x90\\nINFO: lockdep is turned off.\\n\\nIt is not allowed to take the mmap_lock while in atomic context. Therefore\\nhandle such a secure storage access fault as if the accessed page is not\\nmapped: the uaccess function will return -EFAULT, and the caller has to\\ndeal with this. Usually this means that the access is retried in process\\ncontext, which allows to resolve the page fault (or in this case export the\\npage).\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/11709abccf93b08adde95ef313c300b0d4bc28f1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d2e317dfd2d1fe416c77315d17c5d57dbe374915\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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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.
- 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.
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