CVE-2025-37867

RDMA/core: Silence oversized kvmalloc() warning

State: Published
Severity: Not scored
Published: May 9, 2025
Updated: May 11, 2026
Reserved: Apr 16, 2025

Description

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 __GFP_NOWARN.

syzkaller log: WARNING: CPU: 7 PID: 518 at mm/util.c:665 __kvmalloc_node_noprof+0x175/0x180 CPU: 7 UID: 0 PID: 518 Comm: c_repro 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:__kvmalloc_node_noprof+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> ib_umem_odp_get+0x1f6/0x390 mlx5_ib_reg_user_mr+0x1e8/0x450 ib_uverbs_reg_mr+0x28b/0x440 ib_uverbs_write+0x7d3/0xa30 vfs_write+0x1ac/0x6c0 ksys_write+0x134/0x170 ? __sanitizer_cov_trace_pc+0x1c/0x50 do_syscall_64+0x50/0x110 entry_SYSCALL_64_after_hwframe+0x76/0x7e

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e to before f94ac90ce7bd6f9266ad0d99044ed86e8d1416c1Affected 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e to before 791daf8240cedf27af8794038ae1d32ef643bce6Affected 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e to before 6c588e9afbab240c921f936cb676dac72e2e2b66Affected 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e to before ae470d06320dea4002d441784d691f0a26b4322dAffected 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e to before 0d81bb58a203ad5f4044dc18cfbc230c194f650aAffected 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e to before f476eba25fdf70faa7b19a3e0fb00e65c5b53106Affected 37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e to before 9a0e6f15029e1a8a21e40f06fd05aa52b7f063deAffected
LinuxLinux	5.4Affected before 5.4Not affected 5.10.237 through 5.10.Not affected 5.15.181 through 5.15.Not affected 6.1.135 through 6.1.Not affected 6.6.88 through 6.6.Not affected 6.12.25 through 6.12.Not affected 6.14.4 through 6.14.Not affected 6.15 and laterNot affected

Product

Versions

LinuxLinux

37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e to before f94ac90ce7bd6f9266ad0d99044ed86e8d1416c1Affected
37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e to before 791daf8240cedf27af8794038ae1d32ef643bce6Affected
37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e to before 6c588e9afbab240c921f936cb676dac72e2e2b66Affected
37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e to before ae470d06320dea4002d441784d691f0a26b4322dAffected
37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e to before 0d81bb58a203ad5f4044dc18cfbc230c194f650aAffected
37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e to before f476eba25fdf70faa7b19a3e0fb00e65c5b53106Affected
37824952dc8fcd96e5c5a1ce9abf3f0ba09b1e5e to before 9a0e6f15029e1a8a21e40f06fd05aa52b7f063deAffected

LinuxLinux

5.4Affected
before 5.4Not affected
5.10.237 through 5.10.*Not affected
5.15.181 through 5.15.*Not affected
6.1.135 through 6.1.*Not affected
6.6.88 through 6.6.*Not affected
6.12.25 through 6.12.*Not affected
6.14.4 through 6.14.*Not affected
6.15 and laterNot affected

References

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