CVE-2025-38372 (GCVE-0-2025-38372)
Vulnerability from cvelistv5
Published
2025-07-25 12:53
Modified
2025-07-28 04:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA/mlx5: Fix unsafe xarray access in implicit ODP handling
__xa_store() and __xa_erase() were used without holding the proper lock,
which led to a lockdep warning due to unsafe RCU usage. This patch
replaces them with xa_store() and xa_erase(), which perform the necessary
locking internally.
=============================
WARNING: suspicious RCPU usage
6.14.0-rc7_for_upstream_debug_2025_03_18_15_01 #1 Not tainted
-----------------------------
./include/linux/xarray.h:1211 suspicious rcu_dereference_protected() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
3 locks held by kworker/u136:0/219:
at: process_one_work+0xbe4/0x15f0
process_one_work+0x75c/0x15f0
pagefault_mr+0x9a5/0x1390 [mlx5_ib]
stack backtrace:
CPU: 14 UID: 0 PID: 219 Comm: kworker/u136:0 Not tainted
6.14.0-rc7_for_upstream_debug_2025_03_18_15_01 #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
Workqueue: mlx5_ib_page_fault mlx5_ib_eqe_pf_action [mlx5_ib]
Call Trace:
dump_stack_lvl+0xa8/0xc0
lockdep_rcu_suspicious+0x1e6/0x260
xas_create+0xb8a/0xee0
xas_store+0x73/0x14c0
__xa_store+0x13c/0x220
? xa_store_range+0x390/0x390
? spin_bug+0x1d0/0x1d0
pagefault_mr+0xcb5/0x1390 [mlx5_ib]
? _raw_spin_unlock+0x1f/0x30
mlx5_ib_eqe_pf_action+0x3be/0x2620 [mlx5_ib]
? lockdep_hardirqs_on_prepare+0x400/0x400
? mlx5_ib_invalidate_range+0xcb0/0xcb0 [mlx5_ib]
process_one_work+0x7db/0x15f0
? pwq_dec_nr_in_flight+0xda0/0xda0
? assign_work+0x168/0x240
worker_thread+0x57d/0xcd0
? rescuer_thread+0xc40/0xc40
kthread+0x3b3/0x800
? kthread_is_per_cpu+0xb0/0xb0
? lock_downgrade+0x680/0x680
? do_raw_spin_lock+0x12d/0x270
? spin_bug+0x1d0/0x1d0
? finish_task_switch.isra.0+0x284/0x9e0
? lockdep_hardirqs_on_prepare+0x284/0x400
? kthread_is_per_cpu+0xb0/0xb0
ret_from_fork+0x2d/0x70
? kthread_is_per_cpu+0xb0/0xb0
ret_from_fork_asm+0x11/0x20
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/infiniband/hw/mlx5/odp.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "9d2ef890e49963b768d4fe5a33029aacd9f6b93f",
"status": "affected",
"version": "7cc8f681f6d4ae4478ae0f60485fc768f2b450da",
"versionType": "git"
},
{
"lessThan": "ebebffb47c78f63ba7e4fbde393e44af38b7625d",
"status": "affected",
"version": "d3d930411ce390e532470194296658a960887773",
"versionType": "git"
},
{
"lessThan": "2c6b640ea08bff1a192bf87fa45246ff1e40767c",
"status": "affected",
"version": "d3d930411ce390e532470194296658a960887773",
"versionType": "git"
},
{
"status": "affected",
"version": "edfb65dbb9ffd3102f3ff4dd21316158e56f1976",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/infiniband/hw/mlx5/odp.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.14"
},
{
"lessThan": "6.14",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.37",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"version": "6.15.6",
"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": "6.12.37",
"versionStartIncluding": "6.12.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.15.6",
"versionStartIncluding": "6.14",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16",
"versionStartIncluding": "6.14",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.13.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix unsafe xarray access in implicit ODP handling\n\n__xa_store() and __xa_erase() were used without holding the proper lock,\nwhich led to a lockdep warning due to unsafe RCU usage. This patch\nreplaces them with xa_store() and xa_erase(), which perform the necessary\nlocking internally.\n\n =============================\n WARNING: suspicious RCPU usage\n 6.14.0-rc7_for_upstream_debug_2025_03_18_15_01 #1 Not tainted\n -----------------------------\n ./include/linux/xarray.h:1211 suspicious rcu_dereference_protected() usage!\n\n other info that might help us debug this:\n\n rcu_scheduler_active = 2, debug_locks = 1\n 3 locks held by kworker/u136:0/219:\n at: process_one_work+0xbe4/0x15f0\n process_one_work+0x75c/0x15f0\n pagefault_mr+0x9a5/0x1390 [mlx5_ib]\n\n stack backtrace:\n CPU: 14 UID: 0 PID: 219 Comm: kworker/u136:0 Not tainted\n 6.14.0-rc7_for_upstream_debug_2025_03_18_15_01 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS\n rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\n Workqueue: mlx5_ib_page_fault mlx5_ib_eqe_pf_action [mlx5_ib]\n Call Trace:\n dump_stack_lvl+0xa8/0xc0\n lockdep_rcu_suspicious+0x1e6/0x260\n xas_create+0xb8a/0xee0\n xas_store+0x73/0x14c0\n __xa_store+0x13c/0x220\n ? xa_store_range+0x390/0x390\n ? spin_bug+0x1d0/0x1d0\n pagefault_mr+0xcb5/0x1390 [mlx5_ib]\n ? _raw_spin_unlock+0x1f/0x30\n mlx5_ib_eqe_pf_action+0x3be/0x2620 [mlx5_ib]\n ? lockdep_hardirqs_on_prepare+0x400/0x400\n ? mlx5_ib_invalidate_range+0xcb0/0xcb0 [mlx5_ib]\n process_one_work+0x7db/0x15f0\n ? pwq_dec_nr_in_flight+0xda0/0xda0\n ? assign_work+0x168/0x240\n worker_thread+0x57d/0xcd0\n ? rescuer_thread+0xc40/0xc40\n kthread+0x3b3/0x800\n ? kthread_is_per_cpu+0xb0/0xb0\n ? lock_downgrade+0x680/0x680\n ? do_raw_spin_lock+0x12d/0x270\n ? spin_bug+0x1d0/0x1d0\n ? finish_task_switch.isra.0+0x284/0x9e0\n ? lockdep_hardirqs_on_prepare+0x284/0x400\n ? kthread_is_per_cpu+0xb0/0xb0\n ret_from_fork+0x2d/0x70\n ? kthread_is_per_cpu+0xb0/0xb0\n ret_from_fork_asm+0x11/0x20"
}
],
"providerMetadata": {
"dateUpdated": "2025-07-28T04:20:16.907Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/9d2ef890e49963b768d4fe5a33029aacd9f6b93f"
},
{
"url": "https://git.kernel.org/stable/c/ebebffb47c78f63ba7e4fbde393e44af38b7625d"
},
{
"url": "https://git.kernel.org/stable/c/2c6b640ea08bff1a192bf87fa45246ff1e40767c"
}
],
"title": "RDMA/mlx5: Fix unsafe xarray access in implicit ODP handling",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38372",
"datePublished": "2025-07-25T12:53:15.255Z",
"dateReserved": "2025-04-16T04:51:24.009Z",
"dateUpdated": "2025-07-28T04:20:16.907Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-38372\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-25T13:15:26.173\",\"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\\nRDMA/mlx5: Fix unsafe xarray access in implicit ODP handling\\n\\n__xa_store() and __xa_erase() were used without holding the proper lock,\\nwhich led to a lockdep warning due to unsafe RCU usage. This patch\\nreplaces them with xa_store() and xa_erase(), which perform the necessary\\nlocking internally.\\n\\n =============================\\n WARNING: suspicious RCPU usage\\n 6.14.0-rc7_for_upstream_debug_2025_03_18_15_01 #1 Not tainted\\n -----------------------------\\n ./include/linux/xarray.h:1211 suspicious rcu_dereference_protected() usage!\\n\\n other info that might help us debug this:\\n\\n rcu_scheduler_active = 2, debug_locks = 1\\n 3 locks held by kworker/u136:0/219:\\n at: process_one_work+0xbe4/0x15f0\\n process_one_work+0x75c/0x15f0\\n pagefault_mr+0x9a5/0x1390 [mlx5_ib]\\n\\n stack backtrace:\\n CPU: 14 UID: 0 PID: 219 Comm: kworker/u136:0 Not tainted\\n 6.14.0-rc7_for_upstream_debug_2025_03_18_15_01 #1\\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS\\n rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\\n Workqueue: mlx5_ib_page_fault mlx5_ib_eqe_pf_action [mlx5_ib]\\n Call Trace:\\n dump_stack_lvl+0xa8/0xc0\\n lockdep_rcu_suspicious+0x1e6/0x260\\n xas_create+0xb8a/0xee0\\n xas_store+0x73/0x14c0\\n __xa_store+0x13c/0x220\\n ? xa_store_range+0x390/0x390\\n ? spin_bug+0x1d0/0x1d0\\n pagefault_mr+0xcb5/0x1390 [mlx5_ib]\\n ? _raw_spin_unlock+0x1f/0x30\\n mlx5_ib_eqe_pf_action+0x3be/0x2620 [mlx5_ib]\\n ? lockdep_hardirqs_on_prepare+0x400/0x400\\n ? mlx5_ib_invalidate_range+0xcb0/0xcb0 [mlx5_ib]\\n process_one_work+0x7db/0x15f0\\n ? pwq_dec_nr_in_flight+0xda0/0xda0\\n ? assign_work+0x168/0x240\\n worker_thread+0x57d/0xcd0\\n ? rescuer_thread+0xc40/0xc40\\n kthread+0x3b3/0x800\\n ? kthread_is_per_cpu+0xb0/0xb0\\n ? lock_downgrade+0x680/0x680\\n ? do_raw_spin_lock+0x12d/0x270\\n ? spin_bug+0x1d0/0x1d0\\n ? finish_task_switch.isra.0+0x284/0x9e0\\n ? lockdep_hardirqs_on_prepare+0x284/0x400\\n ? kthread_is_per_cpu+0xb0/0xb0\\n ret_from_fork+0x2d/0x70\\n ? kthread_is_per_cpu+0xb0/0xb0\\n ret_from_fork_asm+0x11/0x20\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2c6b640ea08bff1a192bf87fa45246ff1e40767c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9d2ef890e49963b768d4fe5a33029aacd9f6b93f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ebebffb47c78f63ba7e4fbde393e44af38b7625d\",\"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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