From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Bart Van Assche <bvanassche@acm.org>,
Leon Romanovsky <leonro@mellanox.com>,
Jason Gunthorpe <jgg@mellanox.com>,
Sasha Levin <sashal@kernel.org>,
linux-rdma@vger.kernel.org
Subject: [PATCH AUTOSEL 4.14 17/37] RDMA/rxe: Fix configuration of atomic queue pair attributes
Date: Sat, 11 Apr 2020 19:13:06 -0400 [thread overview]
Message-ID: <20200411231327.26550-17-sashal@kernel.org> (raw)
In-Reply-To: <20200411231327.26550-1-sashal@kernel.org>
From: Bart Van Assche <bvanassche@acm.org>
[ Upstream commit fb3063d31995cc4cf1d47a406bb61d6fb1b1d58d ]
From the comment above the definition of the roundup_pow_of_two() macro:
The result is undefined when n == 0.
Hence only pass positive values to roundup_pow_of_two(). This patch fixes
the following UBSAN complaint:
UBSAN: Undefined behaviour in ./include/linux/log2.h:57:13
shift exponent 64 is too large for 64-bit type 'long unsigned int'
Call Trace:
dump_stack+0xa5/0xe6
ubsan_epilogue+0x9/0x26
__ubsan_handle_shift_out_of_bounds.cold+0x4c/0xf9
rxe_qp_from_attr.cold+0x37/0x5d [rdma_rxe]
rxe_modify_qp+0x59/0x70 [rdma_rxe]
_ib_modify_qp+0x5aa/0x7c0 [ib_core]
ib_modify_qp+0x3b/0x50 [ib_core]
cma_modify_qp_rtr+0x234/0x260 [rdma_cm]
__rdma_accept+0x1a7/0x650 [rdma_cm]
nvmet_rdma_cm_handler+0x1286/0x14cd [nvmet_rdma]
cma_cm_event_handler+0x6b/0x330 [rdma_cm]
cma_ib_req_handler+0xe60/0x22d0 [rdma_cm]
cm_process_work+0x30/0x140 [ib_cm]
cm_req_handler+0x11f4/0x1cd0 [ib_cm]
cm_work_handler+0xb8/0x344e [ib_cm]
process_one_work+0x569/0xb60
worker_thread+0x7a/0x5d0
kthread+0x1e6/0x210
ret_from_fork+0x24/0x30
Link: https://lore.kernel.org/r/20200217205714.26937-1-bvanassche@acm.org
Fixes: 8700e3e7c485 ("Soft RoCE driver")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/sw/rxe/rxe_qp.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/infiniband/sw/rxe/rxe_qp.c b/drivers/infiniband/sw/rxe/rxe_qp.c
index 25055a68a2c07..ef7fd5dfad468 100644
--- a/drivers/infiniband/sw/rxe/rxe_qp.c
+++ b/drivers/infiniband/sw/rxe/rxe_qp.c
@@ -593,15 +593,16 @@ int rxe_qp_from_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask,
struct ib_gid_attr sgid_attr;
if (mask & IB_QP_MAX_QP_RD_ATOMIC) {
- int max_rd_atomic = __roundup_pow_of_two(attr->max_rd_atomic);
+ int max_rd_atomic = attr->max_rd_atomic ?
+ roundup_pow_of_two(attr->max_rd_atomic) : 0;
qp->attr.max_rd_atomic = max_rd_atomic;
atomic_set(&qp->req.rd_atomic, max_rd_atomic);
}
if (mask & IB_QP_MAX_DEST_RD_ATOMIC) {
- int max_dest_rd_atomic =
- __roundup_pow_of_two(attr->max_dest_rd_atomic);
+ int max_dest_rd_atomic = attr->max_dest_rd_atomic ?
+ roundup_pow_of_two(attr->max_dest_rd_atomic) : 0;
qp->attr.max_dest_rd_atomic = max_dest_rd_atomic;
--
2.20.1
next prev parent reply other threads:[~2020-04-11 23:19 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-11 23:12 [PATCH AUTOSEL 4.14 01/37] net: wan: wanxl: use allow to pass CROSS_COMPILE_M68k for rebuilding firmware Sasha Levin
2020-04-11 23:12 ` [PATCH AUTOSEL 4.14 02/37] net: phy: probe PHY drivers synchronously Sasha Levin
2020-04-11 23:12 ` [PATCH AUTOSEL 4.14 03/37] RDMA/rxe: Set sys_image_guid to be aligned with HW IB devices Sasha Levin
2020-04-11 23:12 ` [PATCH AUTOSEL 4.14 04/37] mmc: sdhci: do not enable card detect interrupt for gpio cd type Sasha Levin
2020-04-11 23:12 ` [PATCH AUTOSEL 4.14 05/37] serial: 8250_omap: Fix sleeping function called from invalid context during probe Sasha Levin
2020-04-11 23:12 ` [PATCH AUTOSEL 4.14 06/37] net: phy: mscc: accept all RGMII species in vsc85xx_mac_if_set Sasha Levin
2020-04-11 23:12 ` [PATCH AUTOSEL 4.14 07/37] RDMA/cm: Add missing locking around id.state in cm_dup_req_handler Sasha Levin
2020-04-11 23:12 ` [PATCH AUTOSEL 4.14 08/37] NTB: set peer_sta within event handler itself Sasha Levin
2020-04-11 23:12 ` [PATCH AUTOSEL 4.14 09/37] ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read Sasha Levin
2020-04-11 23:12 ` [PATCH AUTOSEL 4.14 10/37] mwifiex: set needed_headroom, not hard_header_len Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 11/37] Bluetooth: L2CAP: handle l2cap config request during open state Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 12/37] drm/tegra: dc: Release PM and RGB output when client's registration fails Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 13/37] net/mlx5e: Init ethtool steering for representors Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 14/37] Bluetooth: Fix calculation of SCO handle for packet processing Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 15/37] net: rmnet: add missing module alias Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 16/37] Bluetooth: guard against controllers sending zero'd events Sasha Levin
2020-04-11 23:13 ` Sasha Levin [this message]
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 18/37] net: intel: e1000e: fix possible sleep-in-atomic-context bugs in e1000e_get_hw_semaphore() Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 19/37] net: dsa: bcm_sf2: Also configure Port 5 for 2Gb/sec on 7278 Sasha Levin
2020-04-12 1:15 ` Florian Fainelli
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 20/37] crypto: tcrypt - fix printed skcipher [a]sync mode Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 21/37] drm/omap: fix possible object reference leak Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 22/37] audit: CONFIG_CHANGE don't log internal bookkeeping as an event Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 23/37] Bluetooth: btusb: Add support for 13d3:3548 Realtek 8822CE device Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 24/37] scsi: lpfc: Fix RQ buffer leakage when no IOCBs available Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 25/37] Bluetooth: RFCOMM: fix ODEBUG bug in rfcomm_dev_ioctl Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 26/37] ath10k: start recovery process when read int status fail for sdio Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 27/37] scsi: aacraid: Disabling TM path and only processing IOP reset Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 28/37] i2c: dev: Fix the race between the release of i2c_dev and cdev Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 29/37] brcmfmac: Fix driver crash on USB control transfer timeout Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 30/37] RDMA/cm: Update num_paths in cma_resolve_iboe_route error flow Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 31/37] ASoC: Intel: Skylake: Enable codec wakeup during chip init Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 32/37] of: of_reserved_mem: Increase limit on number of reserved regions Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 33/37] dmaengine: stm32-dma: use reset controller only at probe time Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 34/37] scsi: ufs: Fix ufshcd_hold() caused scheduling while atomic Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 35/37] ext4: check for non-zero journal inum in ext4_calculate_overhead Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 36/37] ext4: avoid ENOSPC when avoiding to reuse recently deleted inodes Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.14 37/37] svcrdma: Fix leak of transport addresses Sasha Levin
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