{"cve":"CVE-2024-26847","nvd":{"published":"2024-04-17T11:15:08.273","modified":"2026-06-17T07:18:29.643","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/rtas: use correct function name for resetting TCE tables\n\nThe PAPR spec spells the function name as\n\n  \"ibm,reset-pe-dma-windows\"\n\nbut in practice firmware uses the singular form:\n\n  \"ibm,reset-pe-dma-window\"\n\nin the device tree. Since we have the wrong spelling in the RTAS\nfunction table, reverse lookups (token -> name) fail and warn:\n\n  unexpected failed lookup for token 86\n  WARNING: CPU: 1 PID: 545 at arch/powerpc/kernel/rtas.c:659 __do_enter_rtas_trace+0x2a4/0x2b4\n  CPU: 1 PID: 545 Comm: systemd-udevd Not tainted 6.8.0-rc4 #30\n  Hardware name: IBM,9105-22A POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NL1060_028) hv:phyp pSeries\n  NIP [c0000000000417f0] __do_enter_rtas_trace+0x2a4/0x2b4\n  LR [c0000000000417ec] __do_enter_rtas_trace+0x2a0/0x2b4\n  Call Trace:\n   __do_enter_rtas_trace+0x2a0/0x2b4 (unreliable)\n   rtas_call+0x1f8/0x3e0\n   enable_ddw.constprop.0+0x4d0/0xc84\n   dma_iommu_dma_supported+0xe8/0x24c\n   dma_set_mask+0x5c/0xd8\n   mlx5_pci_init.constprop.0+0xf0/0x46c [mlx5_core]\n   probe_one+0xfc/0x32c [mlx5_core]\n   local_pci_probe+0x68/0x12c\n   pci_call_probe+0x68/0x1ec\n   pci_device_probe+0xbc/0x1a8\n   really_probe+0x104/0x570\n   __driver_probe_device+0xb8/0x224\n   driver_probe_device+0x54/0x130\n   __driver_attach+0x158/0x2b0\n   bus_for_each_dev+0xa8/0x120\n   driver_attach+0x34/0x48\n   bus_add_driver+0x174/0x304\n   driver_register+0x8c/0x1c4\n   __pci_register_driver+0x68/0x7c\n   mlx5_init+0xb8/0x118 [mlx5_core]\n   do_one_initcall+0x60/0x388\n   do_init_module+0x7c/0x2a4\n   init_module_from_file+0xb4/0x108\n   idempotent_init_module+0x184/0x34c\n   sys_finit_module+0x90/0x114\n\nAnd oopses are possible when lockdep is enabled or the RTAS\ntracepoints are active, since those paths dereference the result of\nthe lookup.\n\nUse the correct spelling to match firmware's behavior, adjusting the\nrelated constants to match.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.1},"cwes":[],"references":["https://git.kernel.org/stable/c/6b6282d56b14879124416a23837af9bd52ae2dfb","https://git.kernel.org/stable/c/dd63817baf334888289877ab1db1d866af2a6479","https://git.kernel.org/stable/c/fad87dbd48156ab940538f052f1820f4b6ed2819","https://git.kernel.org/stable/c/6b6282d56b14879124416a23837af9bd52ae2dfb","https://git.kernel.org/stable/c/dd63817baf334888289877ab1db1d866af2a6479"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:48:32.179249784+00:00"},"epss":{"cve":"CVE-2024-26847","score":0.0024,"percentile":0.15213,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}