CVE-2024-26766
mediumPriorität · verfolgen · 22OT-Risiko · erhöhtEPSS 0.003 · 19. PerzentilDEEURUUSEPSS · bewertet 2026-10-27
In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fix sdma.h tx->num_descs off-by-one error Unfortunately the commit `fd8958efe877` introduced another error causing the `descs` array to overflow. This reults in further crashes easily reproducible by `sendmsg` system call. [ 1080.836473] general protection fault, probably for non-canonical address 0x400300015528b00a: 0000 [#1] PREEMPT SMP PTI [ 1080.869326] RIP: 0010:hfi1_ipoib_build_ib_tx_headers.constprop.0+0xe1/0x2b0 [hfi1] -- [ 1080.974535] Call Trace: [ 1080.976990] <TASK> [ 1081.021929] hfi1_ipoib_send_dma_common+0x7a/0x2e0 [hfi1] [ 1081.027364] hfi1_ipoib_send_dma_list+0x62/0x270 [hfi1] [ 1081.032633] hfi1_ipoib_send+0x112/0x300 [hfi1] [ 1081.042001] ipoib_start_xmit+0x2a9/0x2d0 [ib_ipoib] [ 1081.046978] dev_hard_start_xmit+0xc4/0x210 -- [ 1081.148347] __sys_sendmsg+0x59/0xa0 crash> ipoib_txreq 0xffff9cfeba229f00 struct ipoib_txreq { txreq = { list = { next = 0xffff9cfeba229f00, prev = 0xffff9cfeba229f00 }, descp = 0xffff9cfeba229f40, coalesce_buf = 0x0, wait = 0xffff9cfea4e69a48, complete = 0xffffffffc0fe0760 <hfi1_ipoib_sdma_complete>, packet_len = 0x46d, tlen = 0x0, num_desc = 0x0, desc_limit = 0x6, next_descq_idx = 0x45c, coalesce_idx = 0x0, flags = 0x0, descs = {{ qw = {0x8024000120dffb00, 0x4} # SDMA_DESC0_FIRST_DESC_FLAG (bit 63) }, { qw = { 0x3800014231b108, 0x4} }, { qw = { 0x310000e4ee0fcf0, 0x8} }, { qw = { 0x3000012e9f8000, 0x8} }, { qw = { 0x59000dfb9d0000, 0x8} }, { qw = { 0x78000e02e40000, 0x8} }} }, sdma_hdr = 0x400300015528b000, <<< invalid pointer in the tx request structure sdma_status = 0x0, SDMA_DESC0_LAST_DESC_FLAG (bit 62) complete = 0x0, priv = 0x0, txq = 0xffff9cfea4e69880, skb = 0xffff9d099809f400 } If an SDMA send consists of exactly 6 descriptors and requires dword padding (in the 7th descriptor), the sdma_txreq descriptor array is not properly expanded and the packet will overflow into the container structure. This results in a panic when the send completion runs. The exact panic varies depending on what elements of the container structure get corrupted. The fix is to use the correct expression in _pad_sdma_tx_descs() to test the need to expand the descriptor array. With this patch the crashes are no longer reproducible and the machine is stable.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- Behobenbpftool-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
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- Behobenkernel-abi-stablelists-0:4.18.0-553.100.1.el8_10.noarch as component of SUSE Liberty Linux 8suse_csaf
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- Behobenkernel-core-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
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- Behobenkernel-cross-headers-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Behobenkernel-debug-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Behobenkernel-debug-core-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
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- Behobenkernel-debug-devel-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
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- Behobenkernel-debug-modules-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
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- Behobenkernel-debug-modules-extra-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
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- Behobenkernel-devel-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
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- Behobenkernel-headers-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Behobenkernel-modules-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Behobenkernel-modules-extra-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Behobenkernel-tools-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Behobenkernel-tools-libs-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Behobenkernel-tools-libs-devel-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Behobenperf-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Behobenpython3-perf-0:4.18.0-553.100.1.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
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cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 5.1–7.8
SSVC
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schwächen
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betroffene Produkte (102)
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- IBM Business Automation Workflow 24.0.0alle Versionencert_bundDEcpe:/a:ibm:business_automation_workflow:24.0.0
Advisories (5)
Hersteller- und Ökosystem-Meldungen dazu.
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SINEC OS before V3.1 contains third-party components with multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.
- WID-SEC-W-2024-0773Linux Kernel: Mehrere SchwachstellenDeutsch2024-04-03csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen, seine Privilegien eskalieren oder einen nicht näher spezifizierten Angriff durchzuführen.
- WID-SEC-W-2026-0783IBM QRadar SIEM: Mehrere SchwachstellenDeutsch2026-03-18csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um beliebigen Programmcode auszuführen, um Informationen offenzulegen, um einen Denial of Service Angriff durchzuführen, um einen Cross-Site Scripting Angriff durchzuführen, und um Dateien zu manipulieren.
- ICSA-25-226-15Siemens SINEC OS2025-08-12icsa · cisa_csaf_otUS
SINEC OS before V3.1 contains third-party components with multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.
auch bekannt als (4)
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quellen
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Referenzen (28)
Externe Belege — Patches, Meldungen, Analysen.
- https://cxsecurity.com/cveshow/CVE-2024-26766/cnnvd
- https://git.kernel.org/stable/c/115b7f3bc1dce590a6851a2dcf23dc1100c49790cnnvd
- https://git.kernel.org/stable/c/3f38d22e645e2e994979426ea5a35186102ff3c2cnnvd
- https://git.kernel.org/stable/c/47ae64df23ed1318e27bd9844e135a5e1c0e6e39cnnvd
- https://git.kernel.org/stable/c/52dc9a7a573dbf778625a0efca0fca55489f084bcnnvd
- https://git.kernel.org/stable/c/5833024a9856f454a964a198c63a57e59e07baf5cnnvd
- https://git.kernel.org/stable/c/9034a1bec35e9f725315a3bb6002ef39666114d9cnnvd
- https://git.kernel.org/stable/c/a2fef1d81becf4ff60e1a249477464eae3c3bc2acnnvd
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