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alsa-2026:2264
Vulnerability from osv_almalinux
Published
2026-02-09 00:00
Modified
2026-02-09 11:47
Summary
Moderate: kernel security update
Details
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
- kernel: vsock/vmci: Clear the vmci transport packet properly when initializing it (CVE-2025-38403)
- kernel: net: use dst_dev_rcu() in sk_setup_caps() (CVE-2025-40170)
- kernel: ipv6: use RCU in ip6_xmit() (CVE-2025-40135)
- kernel: ipv6: use RCU in ip6_output() (CVE-2025-40158)
- kernel: Linux kernel ALSA USB audio driver: Buffer overflow leading to information disclosure and denial of service (CVE-2025-40269)
- kernel: ext4: fix use-after-free in ext4_orphan_cleanup (CVE-2022-50673)
- kernel: NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid (CVE-2025-68349)
- kernel: nvme-tcp: fix NULL pointer dereferences in nvmet_tcp_build_pdu_iovec (CVE-2026-22998)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
References
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"details": "The kernel packages contain the Linux kernel, the core of any Linux operating system. \n\nSecurity Fix(es): \n\n * kernel: vsock/vmci: Clear the vmci transport packet properly when initializing it (CVE-2025-38403)\n * kernel: net: use dst_dev_rcu() in sk_setup_caps() (CVE-2025-40170)\n * kernel: ipv6: use RCU in ip6_xmit() (CVE-2025-40135)\n * kernel: ipv6: use RCU in ip6_output() (CVE-2025-40158)\n * kernel: Linux kernel ALSA USB audio driver: Buffer overflow leading to information disclosure and denial of service (CVE-2025-40269)\n * kernel: ext4: fix use-after-free in ext4_orphan_cleanup (CVE-2022-50673)\n * kernel: NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid (CVE-2025-68349)\n * kernel: nvme-tcp: fix NULL pointer dereferences in nvmet_tcp_build_pdu_iovec (CVE-2026-22998)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
"id": "ALSA-2026:2264",
"modified": "2026-02-09T11:47:42Z",
"published": "2026-02-09T00:00:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2026:2264"
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"url": "https://access.redhat.com/security/cve/CVE-2022-50673"
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"url": "https://bugzilla.redhat.com/2383421"
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"url": "https://bugzilla.redhat.com/2414506"
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}
CVE-2022-50673 (GCVE-0-2022-50673)
Vulnerability from cvelistv5 – Published: 2025-12-09 01:29 – Updated: 2026-08-05 08:59
VLAI
EPSS
VEX
Title
ext4: fix use-after-free in ext4_orphan_cleanup
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix use-after-free in ext4_orphan_cleanup
I caught a issue as follows:
==================================================================
BUG: KASAN: use-after-free in __list_add_valid+0x28/0x1a0
Read of size 8 at addr ffff88814b13f378 by task mount/710
CPU: 1 PID: 710 Comm: mount Not tainted 6.1.0-rc3-next #370
Call Trace:
<TASK>
dump_stack_lvl+0x73/0x9f
print_report+0x25d/0x759
kasan_report+0xc0/0x120
__asan_load8+0x99/0x140
__list_add_valid+0x28/0x1a0
ext4_orphan_cleanup+0x564/0x9d0 [ext4]
__ext4_fill_super+0x48e2/0x5300 [ext4]
ext4_fill_super+0x19f/0x3a0 [ext4]
get_tree_bdev+0x27b/0x450
ext4_get_tree+0x19/0x30 [ext4]
vfs_get_tree+0x49/0x150
path_mount+0xaae/0x1350
do_mount+0xe2/0x110
__x64_sys_mount+0xf0/0x190
do_syscall_64+0x35/0x80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
</TASK>
[...]
==================================================================
Above issue may happen as follows:
-------------------------------------
ext4_fill_super
ext4_orphan_cleanup
--- loop1: assume last_orphan is 12 ---
list_add(&EXT4_I(inode)->i_orphan, &EXT4_SB(sb)->s_orphan)
ext4_truncate --> return 0
ext4_inode_attach_jinode --> return -ENOMEM
iput(inode) --> free inode<12>
--- loop2: last_orphan is still 12 ---
list_add(&EXT4_I(inode)->i_orphan, &EXT4_SB(sb)->s_orphan);
// use inode<12> and trigger UAF
To solve this issue, we need to propagate the return value of
ext4_inode_attach_jinode() appropriately.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/7f801a1593cb957f7… | |
| https://git.kernel.org/stable/c/026a4490b5381229a… | |
| https://git.kernel.org/stable/c/7223d5e75f2635235… | |
| https://git.kernel.org/stable/c/cf0e0817b0f925b70… | |
| https://git.kernel.org/stable/c/c2bdbd4c69308835d… | |
| https://git.kernel.org/stable/c/7908b8a541b1578cc… | |
| https://git.kernel.org/stable/c/a71248b1accb2b42e… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
2c98eb5ea249767bbc11cf4e70e91d5b0458ed13 , < 7f801a1593cb957f73659732836b2dafbdfc7709
(git)
Affected: 2c98eb5ea249767bbc11cf4e70e91d5b0458ed13 , < 026a4490b5381229a30f23d073b58e8e35ee6858 (git) Affected: 2c98eb5ea249767bbc11cf4e70e91d5b0458ed13 , < 7223d5e75f26352354ea2c0ccf8b579821b52adf (git) Affected: 2c98eb5ea249767bbc11cf4e70e91d5b0458ed13 , < cf0e0817b0f925b70d101d7014ea81b7094e1159 (git) Affected: 2c98eb5ea249767bbc11cf4e70e91d5b0458ed13 , < c2bdbd4c69308835d1b6f6ba74feeccbfe113478 (git) Affected: 2c98eb5ea249767bbc11cf4e70e91d5b0458ed13 , < 7908b8a541b1578cc61b4da7f19b604a931441da (git) Affected: 2c98eb5ea249767bbc11cf4e70e91d5b0458ed13 , < a71248b1accb2b42e4980afef4fa4a27fa0e36f5 (git) |
|
| Linux | Linux |
Affected:
4.10
Unaffected: 0 , < 4.10 (semver) Unaffected: 4.19.270 , ≤ 4.19.* (semver) Unaffected: 5.4.229 , ≤ 5.4.* (semver) Unaffected: 5.10.163 , ≤ 5.10.* (semver) Unaffected: 5.15.87 , ≤ 5.15.* (semver) Unaffected: 6.0.18 , ≤ 6.0.* (semver) Unaffected: 6.1.4 , ≤ 6.1.* (semver) Unaffected: 6.2 , ≤ * (original_commit_for_fix) |
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix use-after-free in ext4_orphan_cleanup\n\nI caught a issue as follows:\n==================================================================\n BUG: KASAN: use-after-free in __list_add_valid+0x28/0x1a0\n Read of size 8 at addr ffff88814b13f378 by task mount/710\n\n CPU: 1 PID: 710 Comm: mount Not tainted 6.1.0-rc3-next #370\n Call Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x73/0x9f\n print_report+0x25d/0x759\n kasan_report+0xc0/0x120\n __asan_load8+0x99/0x140\n __list_add_valid+0x28/0x1a0\n ext4_orphan_cleanup+0x564/0x9d0 [ext4]\n __ext4_fill_super+0x48e2/0x5300 [ext4]\n ext4_fill_super+0x19f/0x3a0 [ext4]\n get_tree_bdev+0x27b/0x450\n ext4_get_tree+0x19/0x30 [ext4]\n vfs_get_tree+0x49/0x150\n path_mount+0xaae/0x1350\n do_mount+0xe2/0x110\n __x64_sys_mount+0xf0/0x190\n do_syscall_64+0x35/0x80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n \u003c/TASK\u003e\n [...]\n==================================================================\n\nAbove issue may happen as follows:\n-------------------------------------\next4_fill_super\n ext4_orphan_cleanup\n --- loop1: assume last_orphan is 12 ---\n list_add(\u0026EXT4_I(inode)-\u003ei_orphan, \u0026EXT4_SB(sb)-\u003es_orphan)\n ext4_truncate --\u003e return 0\n ext4_inode_attach_jinode --\u003e return -ENOMEM\n iput(inode) --\u003e free inode\u003c12\u003e\n --- loop2: last_orphan is still 12 ---\n list_add(\u0026EXT4_I(inode)-\u003ei_orphan, \u0026EXT4_SB(sb)-\u003es_orphan);\n // use inode\u003c12\u003e and trigger UAF\n\nTo solve this issue, we need to propagate the return value of\next4_inode_attach_jinode() appropriately."
}
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CVE-2025-38403 (GCVE-0-2025-38403)
Vulnerability from cvelistv5 – Published: 2025-07-25 13:08 – Updated: 2026-06-11 18:44
VLAI
EPSS
VEX
Title
vsock/vmci: Clear the vmci transport packet properly when initializing it
Summary
In the Linux kernel, the following vulnerability has been resolved:
vsock/vmci: Clear the vmci transport packet properly when initializing it
In vmci_transport_packet_init memset the vmci_transport_packet before
populating the fields to avoid any uninitialised data being left in the
structure.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/19c2cc01ff9a80313… | |
| https://git.kernel.org/stable/c/1c1bcb0e78230f533… | |
| https://git.kernel.org/stable/c/2d44723a091bc8532… | |
| https://git.kernel.org/stable/c/0a01021317375b8d1… | |
| https://git.kernel.org/stable/c/94d0c326cb3ee6b0f… | |
| https://git.kernel.org/stable/c/75705b44e0b9aaa74… | |
| https://git.kernel.org/stable/c/e9a673153d578fd43… | |
| https://git.kernel.org/stable/c/223e2288f4b8c262a… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
d021c344051af91f42c5ba9fdedc176740cbd238 , < 19c2cc01ff9a8031398a802676ffb0f4692dd95d
(git)
Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < 1c1bcb0e78230f533b4103e8cf271d17c3f469f0 (git) Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < 2d44723a091bc853272e1a51a488a3d22b80be5e (git) Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < 0a01021317375b8d1895152f544421ce49299eb1 (git) Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < 94d0c326cb3ee6b0f8bd00e209550b93fcc5c839 (git) Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < 75705b44e0b9aaa74f4c163d93d388bcba9e386a (git) Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < e9a673153d578fd439919a24e99851b2f87ecbce (git) Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < 223e2288f4b8c262a864e2c03964ffac91744cd5 (git) |
|
| Linux | Linux |
Affected:
3.9
Unaffected: 0 , < 3.9 (semver) Unaffected: 5.4.296 , ≤ 5.4.* (semver) Unaffected: 5.10.240 , ≤ 5.10.* (semver) Unaffected: 5.15.187 , ≤ 5.15.* (semver) Unaffected: 6.1.144 , ≤ 6.1.* (semver) Unaffected: 6.6.97 , ≤ 6.6.* (semver) Unaffected: 6.12.37 , ≤ 6.12.* (semver) Unaffected: 6.15.6 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix) |
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CVE-2025-40135 (GCVE-0-2025-40135)
Vulnerability from cvelistv5 – Published: 2025-11-12 10:23 – Updated: 2026-08-05 12:08
VLAI
EPSS
VEX
Title
ipv6: use RCU in ip6_xmit()
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: use RCU in ip6_xmit()
Use RCU in ip6_xmit() in order to use dst_dev_rcu() to prevent
possible UAF.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/f0a54d00d2f36de40… | |
| https://git.kernel.org/stable/c/f69fec6287565fdeb… | |
| https://git.kernel.org/stable/c/bd0905e2122e36809… | |
| https://git.kernel.org/stable/c/f7f9e924f23684b4b… | |
| https://git.kernel.org/stable/c/9085e56501d93af9f… | |
| https://cert-portal.siemens.com/productcert/html/… | |
| https://cert-portal.siemens.com/productcert/html/… |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 , < f0a54d00d2f36de40266f47c27989853e8588656
(git)
Affected: 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 , < f69fec6287565fdeb61f65e700a1184352306943 (git) Affected: 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 , < bd0905e2122e3680968cd0741966983490bf2ed3 (git) Affected: 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 , < f7f9e924f23684b4b23cd9f976cceab24a968e34 (git) Affected: 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 , < 9085e56501d93af9f2d7bd16f7fcfacdde47b99c (git) |
|
| Linux | Linux |
Affected:
4.13
Unaffected: 0 , < 4.13 (semver) Unaffected: 6.1.167 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.78 , ≤ 6.12.* (semver) Unaffected: 6.17.3 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix) |
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
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CVE-2025-40158 (GCVE-0-2025-40158)
Vulnerability from cvelistv5 – Published: 2025-11-12 10:23 – Updated: 2026-08-05 12:08
VLAI
EPSS
VEX
Title
ipv6: use RCU in ip6_output()
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: use RCU in ip6_output()
Use RCU in ip6_output() in order to use dst_dev_rcu() to prevent
possible UAF.
We can remove rcu_read_lock()/rcu_read_unlock() pairs
from ip6_finish_output2().
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 , < 0393f85c3241c19ba8550f04a812e7d19f6b3082
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Affected: 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 , < 11709573cc4e48dc34c80fc7ab9ce5b159e29695 (git) |
|
| Linux | Linux |
Affected:
4.13
Unaffected: 0 , < 4.13 (semver) Unaffected: 6.17.3 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix) |
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CVE-2025-40170 (GCVE-0-2025-40170)
Vulnerability from cvelistv5 – Published: 2025-11-12 10:46 – Updated: 2026-08-05 12:08
VLAI
EPSS
VEX
Title
net: use dst_dev_rcu() in sk_setup_caps()
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: use dst_dev_rcu() in sk_setup_caps()
Use RCU to protect accesses to dst->dev from sk_setup_caps()
and sk_dst_gso_max_size().
Also use dst_dev_rcu() in ip6_dst_mtu_maybe_forward(),
and ip_dst_mtu_maybe_forward().
ip4_dst_hoplimit() can use dst_dev_net_rcu().
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 , < 5d1be493d1110c9e720b4c51a6e587bb2fb4ac12
(git)
Affected: 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 , < a805729c0091073d8f0415cfa96c7acd1bc17a48 (git) Affected: 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 , < 99a2ace61b211b0be861b07fbaa062fca4b58879 (git) |
|
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Affected:
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CVE-2025-40269 (GCVE-0-2025-40269)
Vulnerability from cvelistv5 – Published: 2025-12-06 21:50 – Updated: 2026-08-05 12:09
VLAI
EPSS
VEX
Title
ALSA: usb-audio: Fix potential overflow of PCM transfer buffer
Summary
In the Linux kernel, the following vulnerability has been resolved:
ALSA: usb-audio: Fix potential overflow of PCM transfer buffer
The PCM stream data in USB-audio driver is transferred over USB URB
packet buffers, and each packet size is determined dynamically. The
packet sizes are limited by some factors such as wMaxPacketSize USB
descriptor. OTOH, in the current code, the actually used packet sizes
are determined only by the rate and the PPS, which may be bigger than
the size limit above. This results in a buffer overflow, as reported
by syzbot.
Basically when the limit is smaller than the calculated packet size,
it implies that something is wrong, most likely a weird USB
descriptor. So the best option would be just to return an error at
the parameter setup time before doing any further operations.
This patch introduces such a sanity check, and returns -EINVAL when
the packet size is greater than maxpacksize. The comparison with
ep->packsize[1] alone should suffice since it's always equal or
greater than ep->packsize[0].
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
13 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/480a1490c595a242f… | |
| https://git.kernel.org/stable/c/ab0b5e92fc36ee82c… | |
| https://git.kernel.org/stable/c/282aba56713bbc581… | |
| https://git.kernel.org/stable/c/c4dc012b027c9eb10… | |
| https://git.kernel.org/stable/c/e0ed5a36fb3ab9e7b… | |
| https://git.kernel.org/stable/c/d67dde02049e632ba… | |
| https://git.kernel.org/stable/c/6a5da3fa80affc948… | |
| https://git.kernel.org/stable/c/217d47255a2ec8b24… | |
| https://git.kernel.org/stable/c/ef592bf2232a2daa9… | |
| https://git.kernel.org/stable/c/ece3b981bb6620e47… | |
| https://git.kernel.org/stable/c/98e9d5e33bda8db87… | |
| https://git.kernel.org/stable/c/d2c04f20ccc6c0d21… | |
| https://git.kernel.org/stable/c/05a1fc5efdd8560f3… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
02c56650f3c118d3752122996d96173d26bb13aa , < 480a1490c595a242f27493a4544b3efb21b29f6a
(git)
Affected: 5ef30e443e6d3654cccecec99cf481a69a0a6d3b , < ab0b5e92fc36ee82c1bd01fe896d0f775ed5de41 (git) Affected: 99703c921864a318e3e8aae74fde071b1ff35bea , < 282aba56713bbc58155716b55ca7222b2d9cf3c8 (git) Affected: 2d50acd7dbd0682a56968ad9551341d7fc5b6eaf , < c4dc012b027c9eb101583011089dea14d744e314 (git) Affected: aba41867dd66939d336fdf604e4d73b805d8039f , < e0ed5a36fb3ab9e7b9ee45cd17f09f6d5f594360 (git) Affected: d288dc74f8cf95cb7ae0aaf245b7128627a49bf3 , < d67dde02049e632ba58d3c44a164a74b6a737154 (git) Affected: f0bd62b64016508938df9babe47f65c2c727d25c , < 6a5da3fa80affc948923f20a4e086177f505e86e (git) Affected: f0bd62b64016508938df9babe47f65c2c727d25c , < 217d47255a2ec8b246f2725f5db9ac3f1d4109d7 (git) Affected: f0bd62b64016508938df9babe47f65c2c727d25c , < ef592bf2232a2daa9fffa8881881fc9957ea56e9 (git) Affected: f0bd62b64016508938df9babe47f65c2c727d25c , < ece3b981bb6620e47fac826a2156c090b1a936a0 (git) Affected: f0bd62b64016508938df9babe47f65c2c727d25c , < 98e9d5e33bda8db875cc1a4fe99c192658e45ab6 (git) Affected: f0bd62b64016508938df9babe47f65c2c727d25c , < d2c04f20ccc6c0d219e6d3038bab45bc66a178ad (git) Affected: f0bd62b64016508938df9babe47f65c2c727d25c , < 05a1fc5efdd8560f34a3af39c9cf1e1526cc3ddf (git) Affected: 4.4.229 , < 4.4.230 (semver) Affected: 4.9.229 , < 4.9.230 (semver) Affected: 4.14.186 , < 4.14.188 (semver) Affected: 4.19.130 , < 4.19.132 (semver) Affected: 5.4.49 , < 5.4.51 (semver) Affected: 5.7.6 , < 5.7.8 (semver) |
|
| Linux | Linux |
Affected:
5.8
Unaffected: 0 , < 5.8 (semver) Unaffected: 4.4.230 , ≤ 4.4.* (semver) Unaffected: 4.9.230 , ≤ 4.9.* (semver) Unaffected: 4.14.188 , ≤ 4.14.* (semver) Unaffected: 4.19.132 , ≤ 4.19.* (semver) Unaffected: 5.4.51 , ≤ 5.4.* (semver) Unaffected: 5.7.8 , ≤ 5.7.* (semver) Unaffected: 5.10.247 , ≤ 5.10.* (semver) Unaffected: 5.15.197 , ≤ 5.15.* (semver) Unaffected: 6.1.159 , ≤ 6.1.* (semver) Unaffected: 6.6.117 , ≤ 6.6.* (semver) Unaffected: 6.12.59 , ≤ 6.12.* (semver) Unaffected: 6.17.9 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix) |
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"value": "AV:L - The overflow is driven by locally-supplied `hw_params` (rate/format/channels) written via ioctl on `/dev/snd/pcmC*D*p` plus PCM data the attacker writes into the mmap\u0027d buffer, on any system with a USB audio endpoint present (USB headsets/DACs/webcam mics are ubiquitous on desktops, Android, kiosks and embedded systems). Although a malformed descriptor is one way to reach it, no physical interaction is required for a local attacker on a machine with an attached USB audio device.\nAC:L - The attacker deterministically chooses the rate and sample format that make `packsize[1] * stride` exceed the `wMaxPacketSize`-derived buffer, then triggers the copy by starting playback \u2014 no race, no memory-layout guessing, and the condition is fully reproducible on every URB submission.\nPR:L - Only access to the ALSA PCM device node is required, which is granted to the logged-in session user via logind ACLs or membership in the `audio` group; no CAP_SYS_ADMIN or root is needed.\nUI:N - The attacking process performs open/hw_params/prepare/write entirely on its own; no victim action is needed, and on desktop/Android systems PipeWire/AudioFlinger will even drive the stream automatically on hotplug.\nS:U - The corruption stays within the kernel\u0027s own memory and the USB host controller\u0027s DMA-coherent pool, managed by the same security authority; no VM, IOMMU or sandbox boundary is crossed.\nC:H - The oversized `iso_frame_desc` lengths cause the host controller to DMA kernel memory beyond the allocated coherent buffer out to the USB device, disclosing adjacent kernel heap contents to the attacker; heap corruption can also be leveraged for broader arbitrary read.\nI:H - `copy_to_urb()` memcpy\u0027s an attacker-controlled length of attacker-controlled PCM bytes past the end of the coherent URB buffer, giving a heap out-of-bounds write with controlled content \u2014 a primitive suitable for corrupting adjacent objects and hijacking control flow.\nA:H - Overrunning the DMA-coherent transfer buffer corrupts neighbouring kernel/DMA-pool memory and reliably produces an oops or panic, as observed in the syzbot report and the related bugzilla crash reports."
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CVE-2025-68349 (GCVE-0-2025-68349)
Vulnerability from cvelistv5 – Published: 2025-12-24 10:32 – Updated: 2026-08-05 12:10
VLAI
EPSS
VEX
Title
NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid
Summary
In the Linux kernel, the following vulnerability has been resolved:
NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid
Fixes a crash when layout is null during this call stack:
write_inode
-> nfs4_write_inode
-> pnfs_layoutcommit_inode
pnfs_set_layoutcommit relies on the lseg refcount to keep the layout
around. Need to clear NFS_INO_LAYOUTCOMMIT otherwise we might attempt
to reference a null layout.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/084bebe82ad86f718… | |
| https://git.kernel.org/stable/c/b6e4e3a08c03200cc… | |
| https://git.kernel.org/stable/c/104080582ae0aa6dc… | |
| https://git.kernel.org/stable/c/f718f9ea6094843b8… | |
| https://git.kernel.org/stable/c/59947dff0fb7c19c0… | |
| https://git.kernel.org/stable/c/ca2e7fdad7c683b64… | |
| https://git.kernel.org/stable/c/38694f9aae00459ab… | |
| https://git.kernel.org/stable/c/e0f8058f2cb56de0b… | |
| https://cert-portal.siemens.com/productcert/html/… |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
fe1cf9469d7bcb6af27e42eb555a41b0135bce4a , < 084bebe82ad86f718a3af84f34761863e63164ed
(git)
Affected: fe1cf9469d7bcb6af27e42eb555a41b0135bce4a , < b6e4e3a08c03200cc4b8067ec8ab3172a989d6fc (git) Affected: fe1cf9469d7bcb6af27e42eb555a41b0135bce4a , < 104080582ae0aa6dce6c6d75ff89062efe84673b (git) Affected: fe1cf9469d7bcb6af27e42eb555a41b0135bce4a , < f718f9ea6094843b8c059b073af49ad61e9f49bb (git) Affected: fe1cf9469d7bcb6af27e42eb555a41b0135bce4a , < 59947dff0fb7c19c09ce6dccbcd253fd542b6c25 (git) Affected: fe1cf9469d7bcb6af27e42eb555a41b0135bce4a , < ca2e7fdad7c683b64821c94a58b9b68733214dad (git) Affected: fe1cf9469d7bcb6af27e42eb555a41b0135bce4a , < 38694f9aae00459ab443a7dc8b3949a6b33b560a (git) Affected: fe1cf9469d7bcb6af27e42eb555a41b0135bce4a , < e0f8058f2cb56de0b7572f51cd563ca5debce746 (git) |
|
| Linux | Linux |
Affected:
4.10
Unaffected: 0 , < 4.10 (semver) Unaffected: 5.10.248 , ≤ 5.10.* (semver) Unaffected: 5.15.198 , ≤ 5.15.* (semver) Unaffected: 6.1.160 , ≤ 6.1.* (semver) Unaffected: 6.6.120 , ≤ 6.6.* (semver) Unaffected: 6.12.63 , ≤ 6.12.* (semver) Unaffected: 6.17.13 , ≤ 6.17.* (semver) Unaffected: 6.18.2 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix) |
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
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CVE-2026-22998 (GCVE-0-2026-22998)
Vulnerability from cvelistv5 – Published: 2026-01-25 14:36 – Updated: 2026-08-05 12:20
VLAI
EPSS
VEX
Title
nvme-tcp: fix NULL pointer dereferences in nvmet_tcp_build_pdu_iovec
Summary
In the Linux kernel, the following vulnerability has been resolved:
nvme-tcp: fix NULL pointer dereferences in nvmet_tcp_build_pdu_iovec
Commit efa56305908b ("nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length")
added ttag bounds checking and data_offset
validation in nvmet_tcp_handle_h2c_data_pdu(), but it did not validate
whether the command's data structures (cmd->req.sg and cmd->iov) have
been properly initialized before processing H2C_DATA PDUs.
The nvmet_tcp_build_pdu_iovec() function dereferences these pointers
without NULL checks. This can be triggered by sending H2C_DATA PDU
immediately after the ICREQ/ICRESP handshake, before
sending a CONNECT command or NVMe write command.
Attack vectors that trigger NULL pointer dereferences:
1. H2C_DATA PDU sent before CONNECT → both pointers NULL
2. H2C_DATA PDU for READ command → cmd->req.sg allocated, cmd->iov NULL
3. H2C_DATA PDU for uninitialized command slot → both pointers NULL
The fix validates both cmd->req.sg and cmd->iov before calling
nvmet_tcp_build_pdu_iovec(). Both checks are required because:
- Uninitialized commands: both NULL
- READ commands: cmd->req.sg allocated, cmd->iov NULL
- WRITE commands: both allocated
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/baabe43a0edefac8c… | |
| https://git.kernel.org/stable/c/76abc83a9d25593c2… | |
| https://git.kernel.org/stable/c/7d75570002929d20e… | |
| https://git.kernel.org/stable/c/fdecd3b6aac10d5a1… | |
| https://git.kernel.org/stable/c/3def5243150716be8… | |
| https://git.kernel.org/stable/c/374b095e265fa2746… | |
| https://git.kernel.org/stable/c/32b63acd78f577b33… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
f775f2621c2ac5cc3a0b3a64665dad4fb146e510 , < baabe43a0edefac8cd7b981ff87f967f6034dafe
(git)
Affected: 4cb3cf7177ae3666be7fb27d4ad4d72a295fb02d , < 76abc83a9d25593c2b7613c549413079c14a4686 (git) Affected: 2871aa407007f6f531fae181ad252486e022df42 , < 7d75570002929d20e40110d6b03e46202c9d1bc7 (git) Affected: 24e05760186dc070d3db190ca61efdbce23afc88 , < fdecd3b6aac10d5a18d0dc500fe57f8648b66cd4 (git) Affected: efa56305908ba20de2104f1b8508c6a7401833be , < 3def5243150716be86599c2a1767c29c68838b6d (git) Affected: efa56305908ba20de2104f1b8508c6a7401833be , < 374b095e265fa27465f34780e0eb162ff1bef913 (git) Affected: efa56305908ba20de2104f1b8508c6a7401833be , < 32b63acd78f577b332d976aa06b56e70d054cbba (git) Affected: ee5e7632e981673f42a50ade25e71e612e543d9d (git) Affected: 70154e8d015c9b4fb56c1a2ef1fc8b83d45c7f68 (git) Affected: 5.10.209 , < 5.10.249 (semver) Affected: 5.15.148 , < 5.15.199 (semver) Affected: 6.1.75 , < 6.1.162 (semver) Affected: 6.6.14 , < 6.6.122 (semver) Affected: 5.4.268 , < 5.5 (semver) Affected: 6.7.2 , < 6.8 (semver) |
|
| Linux | Linux |
Affected:
6.8
Unaffected: 0 , < 6.8 (semver) Unaffected: 5.10.249 , ≤ 5.10.* (semver) Unaffected: 5.15.199 , ≤ 5.15.* (semver) Unaffected: 6.1.162 , ≤ 6.1.* (semver) Unaffected: 6.6.122 , ≤ 6.6.* (semver) Unaffected: 6.12.67 , ≤ 6.12.* (semver) Unaffected: 6.18.7 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix) |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-22998",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-16T20:38:02.086283Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-16T20:38:12.309Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/nvme/target/tcp.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "baabe43a0edefac8cd7b981ff87f967f6034dafe",
"status": "affected",
"version": "f775f2621c2ac5cc3a0b3a64665dad4fb146e510",
"versionType": "git"
},
{
"lessThan": "76abc83a9d25593c2b7613c549413079c14a4686",
"status": "affected",
"version": "4cb3cf7177ae3666be7fb27d4ad4d72a295fb02d",
"versionType": "git"
},
{
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"status": "affected",
"version": "2871aa407007f6f531fae181ad252486e022df42",
"versionType": "git"
},
{
"lessThan": "fdecd3b6aac10d5a18d0dc500fe57f8648b66cd4",
"status": "affected",
"version": "24e05760186dc070d3db190ca61efdbce23afc88",
"versionType": "git"
},
{
"lessThan": "3def5243150716be86599c2a1767c29c68838b6d",
"status": "affected",
"version": "efa56305908ba20de2104f1b8508c6a7401833be",
"versionType": "git"
},
{
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"status": "affected",
"version": "efa56305908ba20de2104f1b8508c6a7401833be",
"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
},
{
"status": "affected",
"version": "ee5e7632e981673f42a50ade25e71e612e543d9d",
"versionType": "git"
},
{
"status": "affected",
"version": "70154e8d015c9b4fb56c1a2ef1fc8b83d45c7f68",
"versionType": "git"
},
{
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"status": "affected",
"version": "5.10.209",
"versionType": "semver"
},
{
"lessThan": "5.15.199",
"status": "affected",
"version": "5.15.148",
"versionType": "semver"
},
{
"lessThan": "6.1.162",
"status": "affected",
"version": "6.1.75",
"versionType": "semver"
},
{
"lessThan": "6.6.122",
"status": "affected",
"version": "6.6.14",
"versionType": "semver"
},
{
"lessThan": "5.5",
"status": "affected",
"version": "5.4.268",
"versionType": "semver"
},
{
"lessThan": "6.8",
"status": "affected",
"version": "6.7.2",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/nvme/target/tcp.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.8"
},
{
"lessThan": "6.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.249",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.199",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.162",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.122",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.67",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.249",
"versionStartIncluding": "5.10.209",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.199",
"versionStartIncluding": "5.15.148",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.162",
"versionStartIncluding": "6.1.75",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.122",
"versionStartIncluding": "6.6.14",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.67",
"versionStartIncluding": "6.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.7",
"versionStartIncluding": "6.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.19",
"versionStartIncluding": "6.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.4.268",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.7.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-tcp: fix NULL pointer dereferences in nvmet_tcp_build_pdu_iovec\n\nCommit efa56305908b (\"nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length\")\nadded ttag bounds checking and data_offset\nvalidation in nvmet_tcp_handle_h2c_data_pdu(), but it did not validate\nwhether the command\u0027s data structures (cmd-\u003ereq.sg and cmd-\u003eiov) have\nbeen properly initialized before processing H2C_DATA PDUs.\n\nThe nvmet_tcp_build_pdu_iovec() function dereferences these pointers\nwithout NULL checks. This can be triggered by sending H2C_DATA PDU\nimmediately after the ICREQ/ICRESP handshake, before\nsending a CONNECT command or NVMe write command.\n\nAttack vectors that trigger NULL pointer dereferences:\n1. H2C_DATA PDU sent before CONNECT \u2192 both pointers NULL\n2. H2C_DATA PDU for READ command \u2192 cmd-\u003ereq.sg allocated, cmd-\u003eiov NULL\n3. H2C_DATA PDU for uninitialized command slot \u2192 both pointers NULL\n\nThe fix validates both cmd-\u003ereq.sg and cmd-\u003eiov before calling\nnvmet_tcp_build_pdu_iovec(). Both checks are required because:\n- Uninitialized commands: both NULL\n- READ commands: cmd-\u003ereq.sg allocated, cmd-\u003eiov NULL\n- WRITE commands: both allocated"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - The vulnerable code is in the NVMe over TCP target receive path and is reachable by sending NVMe/TCP PDUs to the target TCP listener. A remote peer can send ICREQ followed by malformed H2C_DATA over the network.\nAC:L - No race or hard-to-control state is required for the pre-CONNECT trigger; the attacker only needs to send a valid IC handshake and then an H2C_DATA PDU with coherent length fields. The required packet sequence is deterministic.\nPR:N - The simplest trigger occurs after ICREQ/ICRESP but before CONNECT, before host NQN allow-list checks, controller creation, or DH-HMAC-CHAP authentication are reached. Thus an unauthenticated network peer can reach the vulnerable handler on a non-TLS or plaintext-accepted target port.\nUI:N - Exploitation does not require any victim user action after the target service is listening. The attacker sends protocol messages directly to the NVMe/TCP target.\nS:U - The impact is within the vulnerable kernel/target system\u2019s own security authority. There is no VM escape, IOMMU bypass, or cross-authority boundary change.\nC:N - The bug is a NULL pointer dereference of uninitialized command buffers, not an out-of-bounds read or use-after-free. The investigated paths support a crash impact, not disclosure of kernel memory.\nI:N - The dereferences are to NULL command buffer pointers and do not provide a practical arbitrary write or control-flow primitive. The fix and related history characterize the issue as invalid state leading to NULL dereference.\nA:H - The vulnerable dereference occurs in kernel context and can produce an oops or panic in the nvmet-tcp workqueue path. Repeated unauthenticated network triggers can deny availability of the target system or service."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:20:02.379Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/baabe43a0edefac8cd7b981ff87f967f6034dafe"
},
{
"url": "https://git.kernel.org/stable/c/76abc83a9d25593c2b7613c549413079c14a4686"
},
{
"url": "https://git.kernel.org/stable/c/7d75570002929d20e40110d6b03e46202c9d1bc7"
},
{
"url": "https://git.kernel.org/stable/c/fdecd3b6aac10d5a18d0dc500fe57f8648b66cd4"
},
{
"url": "https://git.kernel.org/stable/c/3def5243150716be86599c2a1767c29c68838b6d"
},
{
"url": "https://git.kernel.org/stable/c/374b095e265fa27465f34780e0eb162ff1bef913"
},
{
"url": "https://git.kernel.org/stable/c/32b63acd78f577b332d976aa06b56e70d054cbba"
}
],
"title": "nvme-tcp: fix NULL pointer dereferences in nvmet_tcp_build_pdu_iovec",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-22998",
"datePublished": "2026-01-25T14:36:12.935Z",
"dateReserved": "2026-01-13T15:37:45.938Z",
"dateUpdated": "2026-08-05T12:20:02.379Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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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.
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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.
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