From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-184.mta0.migadu.com (out-184.mta0.migadu.com [91.218.175.184]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 72BC7372B59 for ; Mon, 6 Apr 2026 13:29:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.184 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775482141; cv=none; b=TCPD+yKnWuI81xt6GKA6wDcD0v1wqpawZPYBTkQ65wD0U46h/8LWZSbsMA8c5tE9N8YnvEmWs/uQBAfEj5YyeJ64FZZtDXVvCPkFjIN28vHJckua6zEFTyEAcnfp7RV8HsfoCDuRTvZ7VinBB4lJt8wlGSc1N5nxEGYqBAhX8y0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775482141; c=relaxed/simple; bh=Ha8MhQXEzBEMq7mU9gwl6pNkOyFU4MXYfWIiPZxkUZQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=BW+IPVFFtK2N8CZf3wfClpf1nbDjx/f5UV/It2fXIGzwOM76vWhQPnMFjI2ErrxmDTVQLew9LO9nquJgfGiKeEMOc2iYMiKOxUrAxe5FMUcVHtm1jIky0ZD9Sr4iIsQGkcLIEhacpD8NZdrCFWq4DVQg6nycV1r1/pCAo2Nxg4o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=HaWbwc+J; arc=none smtp.client-ip=91.218.175.184 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="HaWbwc+J" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1775482138; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=YNtIUnZjrPQLnnsG3IaHRIZXfItDLqjxegoUagyMnos=; b=HaWbwc+JYBMksDSJvimj302IRTdp9frDJgPpRboIACt46VqgM+qeP2XAzVy1RhOkTSseEk o83DoHA9K7CRPglnN5rVQ5vdlwDUltmDF7DBAFRf4FLWgszmEfdNrlDqnt01dJR/zKXyyf RmVvNqr/W2QuOEeIk/dQ8tkijWG3lhs= From: zhenwei pi To: linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org Cc: zyjzyj2000@gmail.com, jgg@ziepe.ca, leon@kernel.org, zhenwei pi Subject: [PATCH v4 1/4] RDMA/core: Fix memory free for GID table Date: Mon, 6 Apr 2026 21:28:26 +0800 Message-ID: <20260406132830.435381-2-zhenwei.pi@linux.dev> In-Reply-To: <20260406132830.435381-1-zhenwei.pi@linux.dev> References: <20260406132830.435381-1-zhenwei.pi@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT Remove RXE device, kernel shows: RIP: 0010:free_large_kmalloc+0xf6/0x140 Code: 75 28 0f 0b 44 0f b6 2d a5 d6 d1 01 41 80 fd 01 0f 87 7c d1 ad ff 41 83 e5 01 74 3d 41 bc 00 f0 ff ff 45 31 ed e9 61 ff ff ff <0f> 0b 48 c7 c6 af b1 70 83 48 89 df e8 79 0a fa ff 5b 41 5c 41 5d RSP: 0018:ffffd038c18074d8 EFLAGS: 00010293 RAX: 0017ffffc0000000 RBX: fffff86984219d00 RCX: 0000000000000000 RDX: 00000000000000f0 RSI: ffff899b88674000 RDI: fffff86984219d00 RBP: ffffd038c18074f0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff899b88674000 R13: 0000000000000001 R14: ffff899b88674000 R15: ffff899b86180000 FS: 00007b163c71c740(0000) GS:ffff899c378bf000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007b163c730200 CR3: 0000000106a1d000 CR4: 0000000000350ef0 Call Trace: kfree+0x163/0x3a0 gid_table_release_one+0xaf/0xf0 [ib_core] ib_cache_release_one+0x66/0x80 [ib_core] ib_device_release+0x48/0xb0 [ib_core] device_release+0x44/0xa0 kobject_put+0x9b/0x250 put_device+0x13/0x30 ib_unregister_device_and_put+0x40/0x60 [ib_core] nldev_dellink+0xd3/0x140 [ib_core] rdma_nl_rcv_msg+0x11d/0x300 [ib_core] ? netlink_bind+0x141/0x3a0 rdma_nl_rcv_skb.constprop.0.isra.0+0xba/0x110 [ib_core] rdma_nl_rcv+0xe/0x20 [ib_core] netlink_unicast+0x28d/0x3e0 netlink_sendmsg+0x214/0x470 __sys_sendto+0x21f/0x230 __x64_sys_sendto+0x24/0x40 x64_sys_call+0x1888/0x26e0 do_syscall_64+0xcb/0x14d0 ? _copy_from_user+0x27/0x70 ? do_sock_setsockopt+0xbd/0x190 ? __sys_setsockopt+0x72/0xd0 ? __x64_sys_setsockopt+0x1f/0x40 ? x64_sys_call+0x221b/0x26e0 ? do_syscall_64+0x109/0x14d0 ? exc_page_fault+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x76/0x7e GID table is allocated by *kzalloc_flex* instead of raw *kzalloc_obj*, it also should be released in new style. Fixes: 74e2711bb2af ("RDMA/core: Use kzalloc_flex for GID table") Signed-off-by: zhenwei pi --- drivers/infiniband/core/cache.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index 896486fa6185..647a547e2d7f 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -801,7 +801,6 @@ static void release_gid_table(struct ib_device *device, } mutex_destroy(&table->lock); - kfree(table->data_vec); kfree(table); } -- 2.43.0