{"id":"CVE-2026-98917","title":"parisc: Increase kernel stack size to 32kb","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nparisc: Increase kernel stack size to 32kb\n\nFor 64-bit Linux kernels, increase the default kernel stack size\n(THREAD_SIZE_ORDER) to 32 kB, in order to avoid kernel cras…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= da57c5414f49ef9e4bcb9ae0bbafd1d650b31411 < 5023c70853ad9829c53d8e9def5ee969b4e1b931","Linux >= da57c5414f49ef9e4bcb9ae0bbafd1d650b31411 < db45f02b7a5f753efc9003f616dfb5ee4cb6d077","Linux >= da57c5414f49ef9e4bcb9ae0bbafd1d650b31411 < 94b7e3a7e871ae27d4935c76959dfc61829f27f9","Linux ae3471f65a04451f3670cbde6c59e384cca44dc8","Linux >= 4.14.24 < 4.15","Linux 4.15"],"published":"2026-10-23","updated":"2026-10-26","sourceUpdated":"2026-10-26T06:56:48.902Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98917","references":[{"url":"https://git.kernel.org/stable/c/5023c70853ad9829c53d8e9def5ee969b4e1b931"},{"url":"https://git.kernel.org/stable/c/db45f02b7a5f753efc9003f616dfb5ee4cb6d077"},{"url":"https://git.kernel.org/stable/c/94b7e3a7e871ae27d4935c76959dfc61829f27f9"}],"tags":["cve.org"],"epss":0.00167,"epssPercentile":0.05861,"ingestedAt":"2026-10-23T13:24:55.569Z","slug":"CVE-2026-98917","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nparisc: Increase kernel stack size to 32kb\n\nFor 64-bit Linux kernels, increase the default kernel stack size\n(THREAD_SIZE_ORDER) to 32 kB, in order to avoid kernel crashes which have been\ntriggered recently when building the debian vtk9 package with gcc 17:\n\nstackcheck: kworker/u128:0 will most likely overflow kernel stack (sp:179a83af0, stk bottom-top:179a80000-179a84000)\nKernel panic - not syncing: low stack detected by irq handler - check messages\nCPU: 2 UID: 0 PID: 30760 Comm: kworker/u128:0 Tainted: G W 6.18.46-dirty #1 NONE\nTainted: [W]=WARN\nHardware name: 9000/800/rp3440\nWorkqueue: writeback wb_workfn (flush-259:0)\nBacktrace:\n [<000000004022f050>] show_stack+0x70/0x90\n [<000000004022378c>] dump_stack_lvl+0x124/0x190\n [<000000004022382c>] dump_stack+0x34/0x48\n [<000000004020212c>] vpanic+0x204/0x648\n [<00000000402025c4>] panic+0x54/0x58\n [<0000000040232230>] do_cpu_irq_mask+0x3f8/0x440\n [<0000000040227070>] intr_return+0x0/0xc\n\n## Affected\n\n- `Linux >= da57c5414f49ef9e4bcb9ae0bbafd1d650b31411 < 5023c70853ad9829c53d8e9def5ee969b4e1b931`\n- `Linux >= da57c5414f49ef9e4bcb9ae0bbafd1d650b31411 < db45f02b7a5f753efc9003f616dfb5ee4cb6d077`\n- `Linux >= da57c5414f49ef9e4bcb9ae0bbafd1d650b31411 < 94b7e3a7e871ae27d4935c76959dfc61829f27f9`\n- `Linux ae3471f65a04451f3670cbde6c59e384cca44dc8`\n- `Linux >= 4.14.24 < 4.15`\n- `Linux 4.15`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}