{"id":"CVE-2025-37867","title":"RDMA/core: Silence oversized kvmalloc() warning","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Silence oversized kvmalloc() warning\n\nsyzkaller triggered an oversized kvmalloc() warning.\nSilence it by adding __GFP_NOWARN.\n\nsyzkaller log:\n WARNING: CPU: …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e < f94ac90ce7bd6f9266ad0d99044ed86e8d1416c1","Linux >= 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e < 791daf8240cedf27af8794038ae1d32ef643bce6","Linux >= 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e < 6c588e9afbab240c921f936cb676dac72e2e2b66","Linux >= 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e < ae470d06320dea4002d441784d691f0a26b4322d","Linux >= 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e < 0d81bb58a203ad5f4044dc18cfbc230c194f650a","Linux >= 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e < f476eba25fdf70faa7b19a3e0fb00e65c5b53106","Linux >= 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e < 9a0e6f15029e1a8a21e40f06fd05aa52b7f063de","Linux 5.4"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:42:42.716171Z"},"published":"2025-05-09","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:52:06.140Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-37867","references":[{"url":"https://git.kernel.org/stable/c/f94ac90ce7bd6f9266ad0d99044ed86e8d1416c1"},{"url":"https://git.kernel.org/stable/c/791daf8240cedf27af8794038ae1d32ef643bce6"},{"url":"https://git.kernel.org/stable/c/6c588e9afbab240c921f936cb676dac72e2e2b66"},{"url":"https://git.kernel.org/stable/c/ae470d06320dea4002d441784d691f0a26b4322d"},{"url":"https://git.kernel.org/stable/c/0d81bb58a203ad5f4044dc18cfbc230c194f650a"},{"url":"https://git.kernel.org/stable/c/f476eba25fdf70faa7b19a3e0fb00e65c5b53106"},{"url":"https://git.kernel.org/stable/c/9a0e6f15029e1a8a21e40f06fd05aa52b7f063de"}],"tags":["cve.org"],"epss":0.00306,"epssPercentile":0.23523,"ingestedAt":"2026-11-05T22:38:31.887Z","slug":"CVE-2025-37867","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Silence oversized kvmalloc() warning\n\nsyzkaller triggered an oversized kvmalloc() warning.\nSilence it by adding __GFP_NOWARN.\n\nsyzkaller log:\n WARNING: CPU: 7 PID: 518 at mm/util.c:665 __kvmalloc_node_noprof+0x175/0x180\n CPU: 7 UID: 0 PID: 518 Comm: c_repro Not tainted 6.11.0-rc6+ #6\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:__kvmalloc_node_noprof+0x175/0x180\n RSP: 0018:ffffc90001e67c10 EFLAGS: 00010246\n RAX: 0000000000000100 RBX: 0000000000000400 RCX: ffffffff8149d46b\n RDX: 0000000000000000 RSI: ffff8881030fae80 RDI: 0000000000000002\n RBP: 000000712c800000 R08: 0000000000000100 R09: 0000000000000000\n R10: ffffc90001e67c10 R11: 0030ae0601000000 R12: 0000000000000000\n R13: 0000000000000000 R14: 00000000ffffffff R15: 0000000000000000\n FS:  00007fde79159740(0000) GS:ffff88813bdc0000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000020000180 CR3: 0000000105eb4005 CR4: 00000000003706b0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n  <TASK>\n  ib_umem_odp_get+0x1f6/0x390\n  mlx5_ib_reg_user_mr+0x1e8/0x450\n  ib_uverbs_reg_mr+0x28b/0x440\n  ib_uverbs_write+0x7d3/0xa30\n  vfs_write+0x1ac/0x6c0\n  ksys_write+0x134/0x170\n  ? __sanitizer_cov_trace_pc+0x1c/0x50\n  do_syscall_64+0x50/0x110\n  entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\n## Affected\n\n- `Linux >= 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e < f94ac90ce7bd6f9266ad0d99044ed86e8d1416c1`\n- `Linux >= 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e < 791daf8240cedf27af8794038ae1d32ef643bce6`\n- `Linux >= 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e < 6c588e9afbab240c921f936cb676dac72e2e2b66`\n- `Linux >= 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e < ae470d06320dea4002d441784d691f0a26b4322d`\n- `Linux >= 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e < 0d81bb58a203ad5f4044dc18cfbc230c194f650a`\n- `Linux >= 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e < f476eba25fdf70faa7b19a3e0fb00e65c5b53106`\n- `Linux >= 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e < 9a0e6f15029e1a8a21e40f06fd05aa52b7f063de`\n- `Linux 5.4`\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":0.1,"exploitation":0,"ransomware":0},"changes":[]}