CVE-2025-37867: RDMA/core: Silence oversized kvmalloc() warning
In the Linux kernel, the following vulnerability has been resolved:
RDMA/core: Silence oversized kvmalloc() warning
syzkaller triggered an oversized kvmalloc() warning. Silence it by adding GFPNOWARN.
syzkaller log: WARNING: CPU: 7 PID: 518 at mm/util.c:665 kvmallocnodenoprof+0x175/0x180 CPU: 7 UID: 0 PID: 518 Comm: crepro Not tainted 6.11.0-rc6+ #6 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:kvmallocnodenoprof+0x175/0x180 RSP: 0018:ffffc90001e67c10 EFLAGS: 00010246 RAX: 0000000000000100 RBX: 0000000000000400 RCX: ffffffff8149d46b RDX: 0000000000000000 RSI: ffff8881030fae80 RDI: 0000000000000002 RBP: 000000712c800000 R08: 0000000000000100 R09: 0000000000000000 R10: ffffc90001e67c10 R11: 0030ae0601000000 R12: 0000000000000000 R13: 0000000000000000 R14: 00000000ffffffff R15: 0000000000000000 FS: 00007fde79159740(0000) GS:ffff88813bdc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000180 CR3: 0000000105eb4005 CR4: 00000000003706b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> ibumemodpget+0x1f6/0x390 mlx5ibregusermr+0x1e8/0x450 ibuverbsregmr+0x28b/0x440 ibuverbswrite+0x7d3/0xa30 vfswrite+0x1ac/0x6c0 ksyswrite+0x134/0x170 ? sanitizercovtracepc+0x1c/0x50 dosyscall64+0x50/0x110 entrySYSCALL64afterhwframe+0x76/0x7e
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2025-37867?
The severity of CVE-2025-37867 is considered low, as it primarily addresses a warning without impacting functionality.
How do I fix CVE-2025-37867?
To fix CVE-2025-37867, upgrade to the latest version of the Linux Kernel that includes the patch for this vulnerability.
What software versions are affected by CVE-2025-37867?
CVE-2025-37867 affects Linux Kernel versions starting from 6.11.0-rc6.
What does CVE-2025-37867 address in the Linux kernel?
CVE-2025-37867 addresses an oversized kvmalloc() warning triggered by syzkaller, which has now been silenced.
Is CVE-2025-37867 a critical vulnerability?
No, CVE-2025-37867 is not a critical vulnerability as it does not lead to exploitability or severe system impact.