Action not permitted
Modal body text goes here.
Modal Title
Modal Body
EUVD-2026-320675
European Vulnerability Database identifier assigned by ENISAReserved
2026-10-02 07:42
Assigner
ENISA
Alias of
a CVE record, shown under related vulnerabilities.
This identifier carries no description, severity or references of its own:
they belong to that CVE.
{
"assigner": "ENISA",
"date_reserved": "2026-10-02T07:42:12.508169+00:00",
"id": "EUVD-2026-320675"
}
CVE-2024-43834 (GCVE-0-2024-43834)
Vulnerability from cvelistv5 – Published: 2024-08-17 09:21 – Updated: 2026-05-23 15:52
VLAI
EPSS
VEX
Title
xdp: fix invalid wait context of page_pool_destroy()
Summary
In the Linux kernel, the following vulnerability has been resolved:
xdp: fix invalid wait context of page_pool_destroy()
If the driver uses a page pool, it creates a page pool with
page_pool_create().
The reference count of page pool is 1 as default.
A page pool will be destroyed only when a reference count reaches 0.
page_pool_destroy() is used to destroy page pool, it decreases a
reference count.
When a page pool is destroyed, ->disconnect() is called, which is
mem_allocator_disconnect().
This function internally acquires mutex_lock().
If the driver uses XDP, it registers a memory model with
xdp_rxq_info_reg_mem_model().
The xdp_rxq_info_reg_mem_model() internally increases a page pool
reference count if a memory model is a page pool.
Now the reference count is 2.
To destroy a page pool, the driver should call both page_pool_destroy()
and xdp_unreg_mem_model().
The xdp_unreg_mem_model() internally calls page_pool_destroy().
Only page_pool_destroy() decreases a reference count.
If a driver calls page_pool_destroy() then xdp_unreg_mem_model(), we
will face an invalid wait context warning.
Because xdp_unreg_mem_model() calls page_pool_destroy() with
rcu_read_lock().
The page_pool_destroy() internally acquires mutex_lock().
Splat looks like:
=============================
[ BUG: Invalid wait context ]
6.10.0-rc6+ #4 Tainted: G W
-----------------------------
ethtool/1806 is trying to lock:
ffffffff90387b90 (mem_id_lock){+.+.}-{4:4}, at: mem_allocator_disconnect+0x73/0x150
other info that might help us debug this:
context-{5:5}
3 locks held by ethtool/1806:
stack backtrace:
CPU: 0 PID: 1806 Comm: ethtool Tainted: G W 6.10.0-rc6+ #4 f916f41f172891c800f2fed
Hardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021
Call Trace:
<TASK>
dump_stack_lvl+0x7e/0xc0
__lock_acquire+0x1681/0x4de0
? _printk+0x64/0xe0
? __pfx_mark_lock.part.0+0x10/0x10
? __pfx___lock_acquire+0x10/0x10
lock_acquire+0x1b3/0x580
? mem_allocator_disconnect+0x73/0x150
? __wake_up_klogd.part.0+0x16/0xc0
? __pfx_lock_acquire+0x10/0x10
? dump_stack_lvl+0x91/0xc0
__mutex_lock+0x15c/0x1690
? mem_allocator_disconnect+0x73/0x150
? __pfx_prb_read_valid+0x10/0x10
? mem_allocator_disconnect+0x73/0x150
? __pfx_llist_add_batch+0x10/0x10
? console_unlock+0x193/0x1b0
? lockdep_hardirqs_on+0xbe/0x140
? __pfx___mutex_lock+0x10/0x10
? tick_nohz_tick_stopped+0x16/0x90
? __irq_work_queue_local+0x1e5/0x330
? irq_work_queue+0x39/0x50
? __wake_up_klogd.part.0+0x79/0xc0
? mem_allocator_disconnect+0x73/0x150
mem_allocator_disconnect+0x73/0x150
? __pfx_mem_allocator_disconnect+0x10/0x10
? mark_held_locks+0xa5/0xf0
? rcu_is_watching+0x11/0xb0
page_pool_release+0x36e/0x6d0
page_pool_destroy+0xd7/0x440
xdp_unreg_mem_model+0x1a7/0x2a0
? __pfx_xdp_unreg_mem_model+0x10/0x10
? kfree+0x125/0x370
? bnxt_free_ring.isra.0+0x2eb/0x500
? bnxt_free_mem+0x5ac/0x2500
xdp_rxq_info_unreg+0x4a/0xd0
bnxt_free_mem+0x1356/0x2500
bnxt_close_nic+0xf0/0x3b0
? __pfx_bnxt_close_nic+0x10/0x10
? ethnl_parse_bit+0x2c6/0x6d0
? __pfx___nla_validate_parse+0x10/0x10
? __pfx_ethnl_parse_bit+0x10/0x10
bnxt_set_features+0x2a8/0x3e0
__netdev_update_features+0x4dc/0x1370
? ethnl_parse_bitset+0x4ff/0x750
? __pfx_ethnl_parse_bitset+0x10/0x10
? __pfx___netdev_update_features+0x10/0x10
? mark_held_locks+0xa5/0xf0
? _raw_spin_unlock_irqrestore+0x42/0x70
? __pm_runtime_resume+0x7d/0x110
ethnl_set_features+0x32d/0xa20
To fix this problem, it uses rhashtable_lookup_fast() instead of
rhashtable_lookup() with rcu_read_lock().
Using xa without rcu_read_lock() here is safe.
xa is freed by __xdp_mem_allocator_rcu_free() and this is called by
call_rcu() of mem_xa_remove().
The mem_xa_remove() is called by page_pool_destroy() if a reference
count reaches 0.
The xa is already protected by the reference count mechanism well in the
control plane.
So removing rcu_read_lock() for page_pool_destroy() is safe.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 16:08 UTC
Assigner
References
9 references
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 , < be9d08ff102df3ac4f66e826ea935cf3af63a4bd
(git)
Affected: c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 , < 6c390ef198aa69795427a5cb5fd7cb4bc7e6cd7a (git) Affected: c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 , < 3fc1be360b99baeea15cdee3cf94252cd3a72d26 (git) Affected: c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 , < bf0ce5aa5f2525ed1b921ba36de96e458e77f482 (git) Affected: c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 , < 12144069209eec7f2090ce9afa15acdcc2c2a537 (git) Affected: c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 , < 59a931c5b732ca5fc2ca727f5a72aeabaafa85ec (git) Affected: bf22306d92ca59c59dc4aa3bab14768948193d56 (git) Affected: 05f646cb2174d1a4e032b60b99097f5c4b522616 (git) Affected: 5.3.18 , < 5.4 (semver) Affected: 5.4.5 , < 5.5 (semver) |
|
| Linux | Linux |
Affected:
5.5
Unaffected: 0 , < 5.5 (semver) Unaffected: 5.10.224 , ≤ 5.10.* (semver) Unaffected: 5.15.165 , ≤ 5.15.* (semver) Unaffected: 6.1.103 , ≤ 6.1.* (semver) Unaffected: 6.6.44 , ≤ 6.6.* (semver) Unaffected: 6.10.3 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix) |
|
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-43834",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T16:08:18.214810Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-09-12T17:33:23.448Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2025-11-03T22:05:21.434Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
}
],
"title": "CVE Program Container"
},
{
"affected": [
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-12T11:56:57.443Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/core/xdp.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "be9d08ff102df3ac4f66e826ea935cf3af63a4bd",
"status": "affected",
"version": "c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3",
"versionType": "git"
},
{
"lessThan": "6c390ef198aa69795427a5cb5fd7cb4bc7e6cd7a",
"status": "affected",
"version": "c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3",
"versionType": "git"
},
{
"lessThan": "3fc1be360b99baeea15cdee3cf94252cd3a72d26",
"status": "affected",
"version": "c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3",
"versionType": "git"
},
{
"lessThan": "bf0ce5aa5f2525ed1b921ba36de96e458e77f482",
"status": "affected",
"version": "c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3",
"versionType": "git"
},
{
"lessThan": "12144069209eec7f2090ce9afa15acdcc2c2a537",
"status": "affected",
"version": "c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3",
"versionType": "git"
},
{
"lessThan": "59a931c5b732ca5fc2ca727f5a72aeabaafa85ec",
"status": "affected",
"version": "c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3",
"versionType": "git"
},
{
"status": "affected",
"version": "bf22306d92ca59c59dc4aa3bab14768948193d56",
"versionType": "git"
},
{
"status": "affected",
"version": "05f646cb2174d1a4e032b60b99097f5c4b522616",
"versionType": "git"
},
{
"lessThan": "5.4",
"status": "affected",
"version": "5.3.18",
"versionType": "semver"
},
{
"lessThan": "5.5",
"status": "affected",
"version": "5.4.5",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/core/xdp.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.5"
},
{
"lessThan": "5.5",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.224",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.165",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.103",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.44",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.10.*",
"status": "unaffected",
"version": "6.10.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.11",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.224",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.165",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.103",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.44",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.10.3",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.11",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.3.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.4.5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxdp: fix invalid wait context of page_pool_destroy()\n\nIf the driver uses a page pool, it creates a page pool with\npage_pool_create().\nThe reference count of page pool is 1 as default.\nA page pool will be destroyed only when a reference count reaches 0.\npage_pool_destroy() is used to destroy page pool, it decreases a\nreference count.\nWhen a page pool is destroyed, -\u003edisconnect() is called, which is\nmem_allocator_disconnect().\nThis function internally acquires mutex_lock().\n\nIf the driver uses XDP, it registers a memory model with\nxdp_rxq_info_reg_mem_model().\nThe xdp_rxq_info_reg_mem_model() internally increases a page pool\nreference count if a memory model is a page pool.\nNow the reference count is 2.\n\nTo destroy a page pool, the driver should call both page_pool_destroy()\nand xdp_unreg_mem_model().\nThe xdp_unreg_mem_model() internally calls page_pool_destroy().\nOnly page_pool_destroy() decreases a reference count.\n\nIf a driver calls page_pool_destroy() then xdp_unreg_mem_model(), we\nwill face an invalid wait context warning.\nBecause xdp_unreg_mem_model() calls page_pool_destroy() with\nrcu_read_lock().\nThe page_pool_destroy() internally acquires mutex_lock().\n\nSplat looks like:\n=============================\n[ BUG: Invalid wait context ]\n6.10.0-rc6+ #4 Tainted: G W\n-----------------------------\nethtool/1806 is trying to lock:\nffffffff90387b90 (mem_id_lock){+.+.}-{4:4}, at: mem_allocator_disconnect+0x73/0x150\nother info that might help us debug this:\ncontext-{5:5}\n3 locks held by ethtool/1806:\nstack backtrace:\nCPU: 0 PID: 1806 Comm: ethtool Tainted: G W 6.10.0-rc6+ #4 f916f41f172891c800f2fed\nHardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021\nCall Trace:\n\u003cTASK\u003e\ndump_stack_lvl+0x7e/0xc0\n__lock_acquire+0x1681/0x4de0\n? _printk+0x64/0xe0\n? __pfx_mark_lock.part.0+0x10/0x10\n? __pfx___lock_acquire+0x10/0x10\nlock_acquire+0x1b3/0x580\n? mem_allocator_disconnect+0x73/0x150\n? __wake_up_klogd.part.0+0x16/0xc0\n? __pfx_lock_acquire+0x10/0x10\n? dump_stack_lvl+0x91/0xc0\n__mutex_lock+0x15c/0x1690\n? mem_allocator_disconnect+0x73/0x150\n? __pfx_prb_read_valid+0x10/0x10\n? mem_allocator_disconnect+0x73/0x150\n? __pfx_llist_add_batch+0x10/0x10\n? console_unlock+0x193/0x1b0\n? lockdep_hardirqs_on+0xbe/0x140\n? __pfx___mutex_lock+0x10/0x10\n? tick_nohz_tick_stopped+0x16/0x90\n? __irq_work_queue_local+0x1e5/0x330\n? irq_work_queue+0x39/0x50\n? __wake_up_klogd.part.0+0x79/0xc0\n? mem_allocator_disconnect+0x73/0x150\nmem_allocator_disconnect+0x73/0x150\n? __pfx_mem_allocator_disconnect+0x10/0x10\n? mark_held_locks+0xa5/0xf0\n? rcu_is_watching+0x11/0xb0\npage_pool_release+0x36e/0x6d0\npage_pool_destroy+0xd7/0x440\nxdp_unreg_mem_model+0x1a7/0x2a0\n? __pfx_xdp_unreg_mem_model+0x10/0x10\n? kfree+0x125/0x370\n? bnxt_free_ring.isra.0+0x2eb/0x500\n? bnxt_free_mem+0x5ac/0x2500\nxdp_rxq_info_unreg+0x4a/0xd0\nbnxt_free_mem+0x1356/0x2500\nbnxt_close_nic+0xf0/0x3b0\n? __pfx_bnxt_close_nic+0x10/0x10\n? ethnl_parse_bit+0x2c6/0x6d0\n? __pfx___nla_validate_parse+0x10/0x10\n? __pfx_ethnl_parse_bit+0x10/0x10\nbnxt_set_features+0x2a8/0x3e0\n__netdev_update_features+0x4dc/0x1370\n? ethnl_parse_bitset+0x4ff/0x750\n? __pfx_ethnl_parse_bitset+0x10/0x10\n? __pfx___netdev_update_features+0x10/0x10\n? mark_held_locks+0xa5/0xf0\n? _raw_spin_unlock_irqrestore+0x42/0x70\n? __pm_runtime_resume+0x7d/0x110\nethnl_set_features+0x32d/0xa20\n\nTo fix this problem, it uses rhashtable_lookup_fast() instead of\nrhashtable_lookup() with rcu_read_lock().\nUsing xa without rcu_read_lock() here is safe.\nxa is freed by __xdp_mem_allocator_rcu_free() and this is called by\ncall_rcu() of mem_xa_remove().\nThe mem_xa_remove() is called by page_pool_destroy() if a reference\ncount reaches 0.\nThe xa is already protected by the reference count mechanism well in the\ncontrol plane.\nSo removing rcu_read_lock() for page_pool_destroy() is safe."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-23T15:52:57.964Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/be9d08ff102df3ac4f66e826ea935cf3af63a4bd"
},
{
"url": "https://git.kernel.org/stable/c/6c390ef198aa69795427a5cb5fd7cb4bc7e6cd7a"
},
{
"url": "https://git.kernel.org/stable/c/3fc1be360b99baeea15cdee3cf94252cd3a72d26"
},
{
"url": "https://git.kernel.org/stable/c/bf0ce5aa5f2525ed1b921ba36de96e458e77f482"
},
{
"url": "https://git.kernel.org/stable/c/12144069209eec7f2090ce9afa15acdcc2c2a537"
},
{
"url": "https://git.kernel.org/stable/c/59a931c5b732ca5fc2ca727f5a72aeabaafa85ec"
}
],
"title": "xdp: fix invalid wait context of page_pool_destroy()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-43834",
"datePublished": "2024-08-17T09:21:51.583Z",
"dateReserved": "2024-08-17T09:11:59.274Z",
"dateUpdated": "2026-05-23T15:52:57.964Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…
Loading…