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
Metrics
Affected Vendors & Products
No data.
No data.
No data.
References
History
Fri, 09 May 2025 07:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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 | |
| Title | RDMA/core: Silence oversized kvmalloc() warning | |
| References |
|
|
MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2025-05-09T06:43:56.749Z
Updated: 2025-05-09T06:43:56.749Z
Reserved: 2025-04-16T04:51:23.959Z
Link: CVE-2025-37867
Vulnrichment
No data.
NVD
Status : Received
Published: 2025-05-09T07:16:07.763
Modified: 2025-05-09T07:16:07.763
Link: CVE-2025-37867
Redhat
No data.