CVE catalog

CVE-2026-43029

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix soft lockup in mptcp_recvmsg() syzbot reported a soft lockup in mptcp_recvmsg() [0]. When receiving data with MSG_PEEK

[CVE catalog]

Severity
Critical · CVSS 10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published
Source
[NVD] · [CVE record]
EPSS
0.33% · Oct 25, 2026

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix soft lockup in mptcp_recvmsg() syzbot reported a soft lockup in mptcp_recvmsg() [0]. When receiving data with MSG_PEEK | MSG_WAITALL flags, the skb is not removed from the sk_receive_queue. This causes sk_wait_data() to always find available data and never perform actual waiting, leading to a soft lockup. Fix this by adding a 'last' parameter to track the last peeked skb. This allows sk_wait_data() to make informed waiting decisions and prevent infinite loops when MSG_PEEK is used. [0]: watchdog: BUG: soft lockup - CPU#2 stuck for 156s! [server:1963] Modules linked in: CPU: 2 UID: 0 PID: 1963 Comm: server Not tainted 6.19.0-rc8 #61 PREEMPT(none) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 RIP: 0010:sk_wait_data+0x15/0x190 Code: 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 56 41 55 41 54 49 89 f4 55 48 89 d5 53 48 89 fb <48> 83 ec 30 65 48 8b 05 17 a4 6b 01 48 89 44 24 28 31 c0 65 48 8b RSP: 0018:ffffc90000603ca0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff888102bf0800 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffc90000603d18 RDI: ffff888102bf0800 RBP: 0000000000000000 R08: 0000000000000002 R09: 0000000000000101 R10: 0000000000000000 R11: 0000000000000075 R12: ffffc90000603d18 R13: ffff888102bf0800 R14: ffff888102bf0800 R15: 0000000000000000 FS: 00007f6e38b8c4c0(0000) GS:ffff8881b877e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055aa7bff1680 CR3: 0000000105cbe000 CR4: 00000000000006f0 Call Trace: <TASK> mptcp_recvmsg+0x547/0x8c0 net/mptcp/protocol.c:2329 inet_recvmsg+0x11f/0x130 net/ipv4/af_inet.c:891 sock_recvmsg+0x94/0xc0 net/socket.c:1100 __sys_recvfrom+0xb2/0x130 net/socket.c:2256 __x64_sys_recvfrom+0x1f/0x30 net/socket.c:2267 do_syscall_64+0x59/0x2d0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x76/0x7e arch/x86/entry/entry_64.S:131 RIP: 0033:0x7f6e386a4a1d Code: 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 8d 05 f1 de 2c 00 41 89 ca 8b 00 85 c0 75 20 45 31 c9 45 31 c0 b8 2d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 6b f3 c3 66 0f 1f 84 00 00 00 00 00 41 56 41 RSP: 002b:00007ffc3c4bb078 EFLAGS: 00000246 ORIG_RAX: 000000000000002d RAX: ffffffffffffffda RBX: 000000000000861e RCX: 00007f6e386a4a1d RDX: 00000000000003ff RSI: 00007ffc3c4bb150 RDI: 0000000000000004 RBP: 00007ffc3c4bb570 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000103 R11: 0000000000000246 R12: 00005605dbc00be0 R13: 00007ffc3c4bb650 R14: 0000000000000000 R15: 0000000000000000 </TASK>

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debianlinuxsid7.2.12-1fixed
Debianlinuxforky7.2.12-1fixed
Debianlinuxtrixie6.12.107-1vulnerable
Debianlinuxtrixie-security6.12.113-1vulnerable
Debianlinuxbookworm6.1.176-1not affected
Debianlinuxbookworm-security6.1.190-1not affected
Cpelinux_kernelNot reported6.18.22fixed
Cpelinux_kernelNot reported6.19.12fixed
Cpelinux_kernelNot reportedNot reportedunknown
Ubuntulinux-nvidia-tegranoble6.8.0-1035.38fixed
Ubuntulinux-buildinfo-6.8.0-1035-nvidia-tegranoble6.8.0-1035.38fixed
Ubuntulinux-buildinfo-6.8.0-1035-nvidia-tegra-rtnoble6.8.0-1035.38fixed
Ubuntulinux-headers-6.8.0-1035-nvidia-tegranoble6.8.0-1035.38fixed
Ubuntulinux-headers-6.8.0-1035-nvidia-tegra-rtnoble6.8.0-1035.38fixed
Ubuntulinux-headers-nvidia-tegranoble6.8.0-1035.38fixed
Ubuntulinux-headers-nvidia-tegra-6.8noble6.8.0-1035.38fixed
Ubuntulinux-headers-nvidia-tegra-rtnoble6.8.0-1035.38fixed
Ubuntulinux-headers-nvidia-tegra-rt-6.8noble6.8.0-1035.38fixed
Ubuntulinux-image-6.8.0-1035-nvidia-tegranoble6.8.0-1035.38fixed
Ubuntulinux-image-6.8.0-1035-nvidia-tegra-rtnoble6.8.0-1035.38fixed
Ubuntulinux-image-nvidia-tegranoble6.8.0-1035.38fixed
Ubuntulinux-image-nvidia-tegra-6.8noble6.8.0-1035.38fixed
Ubuntulinux-image-nvidia-tegra-rtnoble6.8.0-1035.38fixed
Ubuntulinux-image-nvidia-tegra-rt-6.8noble6.8.0-1035.38fixed
Ubuntulinux-image-uc-6.8.0-1035-nvidia-tegranoble6.8.0-1035.38fixed
Ubuntulinux-image-uc-6.8.0-1035-nvidia-tegra-rtnoble6.8.0-1035.38fixed
Ubuntulinux-image-uc-nvidia-tegranoble6.8.0-1035.38fixed
Ubuntulinux-image-uc-nvidia-tegra-6.8noble6.8.0-1035.38fixed
Ubuntulinux-image-uc-nvidia-tegra-rtnoble6.8.0-1035.38fixed
Ubuntulinux-image-uc-nvidia-tegra-rt-6.8noble6.8.0-1035.38fixed
Ubuntulinux-image-unsigned-6.8.0-1035-nvidia-tegranoble6.8.0-1035.38fixed
Ubuntulinux-image-unsigned-6.8.0-1035-nvidia-tegra-rtnoble6.8.0-1035.38fixed
Ubuntulinux-modules-6.8.0-1035-nvidia-tegranoble6.8.0-1035.38fixed
Ubuntulinux-modules-6.8.0-1035-nvidia-tegra-rtnoble6.8.0-1035.38fixed
Ubuntulinux-modules-extra-6.8.0-1035-nvidia-tegranoble6.8.0-1035.38fixed
Ubuntulinux-modules-extra-6.8.0-1035-nvidia-tegra-rtnoble6.8.0-1035.38fixed
Ubuntulinux-nvidia-tegra-6.8noble6.8.0-1035.38fixed
Ubuntulinux-nvidia-tegra-headers-6.8.0-1035noble6.8.0-1035.38fixed
Ubuntulinux-nvidia-tegra-rtnoble6.8.0-1035.38fixed
Ubuntulinux-nvidia-tegra-rt-6.8noble6.8.0-1035.38fixed
Ubuntulinux-nvidia-tegra-tools-6.8.0-1035noble6.8.0-1035.38fixed
Ubuntulinux-tools-6.8.0-1035-nvidia-tegranoble6.8.0-1035.38fixed
Ubuntulinux-tools-6.8.0-1035-nvidia-tegra-rtnoble6.8.0-1035.38fixed
Ubuntulinux-tools-nvidia-tegranoble6.8.0-1035.38fixed
Ubuntulinux-tools-nvidia-tegra-6.8noble6.8.0-1035.38fixed
Ubuntulinux-tools-nvidia-tegra-rtnoble6.8.0-1035.38fixed
Ubuntulinux-tools-nvidia-tegra-rt-6.8noble6.8.0-1035.38fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianlinuxsourcesid6.19.12-1not yet assignedNot reportedNot reported
Debianlinuxsourceforky6.19.12-1not yet assignedNot reportedNot reported
Debianlinuxsourcetrixie(unfixed)not yet assignedNot reportedNot reported
DebianlinuxsourcebookwormNot affectedunimportantNot reportedNot reported
Cpelinux_kernelcpeNot reported6.18.22Not reportedNot reportedNot reported
Cpelinux_kernelcpeNot reported6.19.12Not reportedNot reportedNot reported
Ubuntulinux-nvidia-tegradebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-buildinfo-6.8.0-1035-nvidia-tegradebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-buildinfo-6.8.0-1035-nvidia-tegra-rtdebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-headers-6.8.0-1035-nvidia-tegradebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-headers-6.8.0-1035-nvidia-tegra-rtdebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-headers-nvidia-tegradebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-headers-nvidia-tegra-6.8debnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-headers-nvidia-tegra-rtdebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-headers-nvidia-tegra-rt-6.8debnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-image-6.8.0-1035-nvidia-tegradebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-image-6.8.0-1035-nvidia-tegra-rtdebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-image-nvidia-tegradebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-image-nvidia-tegra-6.8debnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-image-nvidia-tegra-rtdebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-image-nvidia-tegra-rt-6.8debnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-image-uc-6.8.0-1035-nvidia-tegradebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-image-uc-6.8.0-1035-nvidia-tegra-rtdebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-image-uc-nvidia-tegradebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-image-uc-nvidia-tegra-6.8debnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-image-uc-nvidia-tegra-rtdebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-image-uc-nvidia-tegra-rt-6.8debnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-image-unsigned-6.8.0-1035-nvidia-tegradebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-image-unsigned-6.8.0-1035-nvidia-tegra-rtdebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-modules-6.8.0-1035-nvidia-tegradebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-modules-6.8.0-1035-nvidia-tegra-rtdebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-modules-extra-6.8.0-1035-nvidia-tegradebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-modules-extra-6.8.0-1035-nvidia-tegra-rtdebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-nvidia-tegra-6.8debnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-nvidia-tegra-headers-6.8.0-1035debnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-nvidia-tegra-rtdebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-nvidia-tegra-rt-6.8debnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-nvidia-tegra-tools-6.8.0-1035debnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-tools-6.8.0-1035-nvidia-tegradebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-tools-6.8.0-1035-nvidia-tegra-rtdebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-tools-nvidia-tegradebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-tools-nvidia-tegra-6.8debnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-tools-nvidia-tegra-rtdebnoble6.8.0-1035.38Not reportedNot reportedNot reported
Ubuntulinux-tools-nvidia-tegra-rt-6.8debnoble6.8.0-1035.38Not reportedNot reportedNot reported

OpenFactory catalog packages

[Debian 13 (Trixie)]

  • [bpftool]Affected

    Source package: [linux]

    Details (10)
    • 7.5.0+6.12.94-1 · amd64 · trixie

      Affected

      nvd · linux · debian · 13

    • 7.5.0+6.12.94-1 · arm64 · trixie

      Affected

      nvd · linux · debian · 13

    • 7.8.0+7.1.8-1~bpo13+1 · amd64 · trixie-backports

      Affected

      nvd · linux · debian · 13

    • 7.8.0+7.1.8-1~bpo13+1 · arm64 · trixie-backports

      Affected

      nvd · linux · debian · 13

    • 7.5.0+6.12.101-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 7.5.0+6.12.105-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 7.5.0+6.12.107-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 7.5.0+6.12.107-1 · arm64 · trixie-security

      Affected

      nvd · linux · debian · 13

    • 7.5.0+6.12.111-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 7.5.0+6.12.113-1 · amd64 · trixie-security

      Affected

      nvd · linux · debian · 13

  • [hyperv-daemons]Affected

    Source package: [linux]

    Details (10)
    • 6.12.94-1 · amd64 · trixie

      Affected

      nvd · linux · debian · 13

    • 6.12.94-1 · arm64 · trixie

      Affected

      nvd · linux · debian · 13

    • 7.1.8-1~bpo13+1 · amd64 · trixie-backports

      Affected

      nvd · linux · debian · 13

    • 7.1.8-1~bpo13+1 · arm64 · trixie-backports

      Affected

      nvd · linux · debian · 13

    • 6.12.101-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.105-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.107-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.107-1 · arm64 · trixie-security

      Affected

      nvd · linux · debian · 13

    • 6.12.111-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.113-1 · amd64 · trixie-security

      Affected

      nvd · linux · debian · 13

  • [intel-sdsi]Affected

    Source package: [linux]

    Details (7)
    • 6.12.94-1 · amd64 · trixie

      Affected

      nvd · linux · debian · 13

    • 7.1.8-1~bpo13+1 · amd64 · trixie-backports

      Affected

      nvd · linux · debian · 13

    • 6.12.101-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.105-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.107-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.111-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.113-1 · amd64 · trixie-security

      Affected

      nvd · linux · debian · 13

  • [libcpupower1]Affected

    Source package: [linux]

    Details (10)
    • 6.12.94-1 · amd64 · trixie

      Affected

      nvd · linux · debian · 13

    • 6.12.94-1 · arm64 · trixie

      Affected

      nvd · linux · debian · 13

    • 7.1.8-1~bpo13+1 · amd64 · trixie-backports

      Affected

      nvd · linux · debian · 13

    • 7.1.8-1~bpo13+1 · arm64 · trixie-backports

      Affected

      nvd · linux · debian · 13

    • 6.12.101-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.105-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.107-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.107-1 · arm64 · trixie-security

      Affected

      nvd · linux · debian · 13

    • 6.12.111-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.113-1 · amd64 · trixie-security

      Affected

      nvd · linux · debian · 13

  • [libcpupower-dev]Affected

    Source package: [linux]

    Details (10)
    • 6.12.94-1 · amd64 · trixie

      Affected

      nvd · linux · debian · 13

    • 6.12.94-1 · arm64 · trixie

      Affected

      nvd · linux · debian · 13

    • 7.1.8-1~bpo13+1 · amd64 · trixie-backports

      Affected

      nvd · linux · debian · 13

    • 7.1.8-1~bpo13+1 · arm64 · trixie-backports

      Affected

      nvd · linux · debian · 13

    • 6.12.101-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.105-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.107-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.107-1 · arm64 · trixie-security

      Affected

      nvd · linux · debian · 13

    • 6.12.111-1 · amd64 · trixie-security · Historical version

      Affected

      nvd · linux · debian · 13

    • 6.12.113-1 · amd64 · trixie-security

      Affected

      nvd · linux · debian · 13

  • Source package: [linux]

    Details (1)
    • 6.18.12-1~bpo13+1 · amd64 · trixie-backports

      Affected

      nvd · linux · debian · 13

  • Source package: [linux]

    Details (1)
    • 6.18.12-1~bpo13+1 · arm64 · trixie-backports

      Affected

      nvd · linux · debian · 13

  • Source package: [linux]

    Details (1)
    • 6.18.12-1~bpo13+1 · arm64 · trixie-backports

      Affected

      nvd · linux · debian · 13

  • Source package: [linux]

    Details (1)
    • 6.18.12-1~bpo13+1 · amd64 · trixie-backports

      Affected

      nvd · linux · debian · 13

  • Source package: [linux]

    Details (1)
    • 6.18.12-1~bpo13+1 · arm64 · trixie-backports

      Affected

      nvd · linux · debian · 13

  • Source package: [linux]

    Details (1)
    • 6.18.12-1~bpo13+1 · amd64 · trixie-backports

      Affected

      nvd · linux · debian · 13

  • Source package: [linux]

    Details (1)
    • 6.18.12-1~bpo13+1 · arm64 · trixie-backports

      Affected

      nvd · linux · debian · 13

  • Source package: [linux]

    Details (1)
    • 6.18.15-1~bpo13+1 · amd64 · trixie-backports

      Affected

      nvd · linux · debian · 13

  • Source package: [linux]

    Details (1)
    • 6.18.15-1~bpo13+1 · arm64 · trixie-backports

      Affected

      nvd · linux · debian · 13

  • Source package: [linux]

    Details (1)
    • 6.18.15-1~bpo13+1 · arm64 · trixie-backports

      Affected

      nvd · linux · debian · 13

  • Source package: [linux]

    Details (1)
    • 6.18.15-1~bpo13+1 · amd64 · trixie-backports

      Affected

      nvd · linux · debian · 13

  • Source package: [linux]

    Details (1)
    • 6.18.15-1~bpo13+1 · arm64 · trixie-backports

      Affected

      nvd · linux · debian · 13

  • Source package: [linux]

    Details (1)
    • 6.18.15-1~bpo13+1 · amd64 · trixie-backports

      Affected

      nvd · linux · debian · 13

  • Source package: [linux]

    Details (1)
    • 6.18.15-1~bpo13+1 · arm64 · trixie-backports

      Affected

      nvd · linux · debian · 13

  • Source package: [linux]

    Details (1)
    • 6.18.5-1~bpo13+1 · amd64 · trixie-backports

      Affected

      nvd · linux · debian · 13

Next results

Observed:

References