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authorSagi Grimberg <sagi@grimberg.me>2022-11-09 04:29:57 +0100
committerChristoph Hellwig <hch@lst.de>2022-11-09 14:29:13 +0100
commite65fdf530f55c5e387db14470a59a399faa29613 (patch)
tree2e27edcce285399b7dbab691e46f459f8fddba90
parentnvmet: fix memory leak in nvmet_subsys_attr_model_store_locked (diff)
downloadlinux-e65fdf530f55c5e387db14470a59a399faa29613.tar.xz
linux-e65fdf530f55c5e387db14470a59a399faa29613.zip
nvmet: fix a memory leak
We need to also free the dhchap_ctrl_secret when releasing nvmet_host. kmemleak complaint: -- unreferenced object 0xffff99b1cbca5140 (size 64): comm "check", pid 4864, jiffies 4305092436 (age 2913.583s) hex dump (first 32 bytes): 44 48 48 43 2d 31 3a 30 30 3a 65 36 2b 41 63 44 DHHC-1:00:e6+AcD 39 76 47 4d 52 57 59 78 67 54 47 44 51 59 47 78 9vGMRWYxgTGDQYGx backtrace: [<00000000c07d369d>] kstrdup+0x2e/0x60 [<000000001372171c>] 0xffffffffc0cceec6 [<0000000010dbf50b>] 0xffffffffc0cc6783 [<000000007465e93c>] configfs_write_iter+0xb1/0x120 [<0000000039c23f62>] vfs_write+0x2be/0x3c0 [<000000002da4351c>] ksys_write+0x5f/0xe0 [<00000000d5011e32>] do_syscall_64+0x38/0x90 [<00000000503870cf>] entry_SYSCALL_64_after_hwframe+0x63/0xcd Fixes: db1312dd9548 ("nvmet: implement basic In-Band Authentication") Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
-rw-r--r--drivers/nvme/target/configfs.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/nvme/target/configfs.c b/drivers/nvme/target/configfs.c
index d0b9eea15ff8..6a2816f3b4e8 100644
--- a/drivers/nvme/target/configfs.c
+++ b/drivers/nvme/target/configfs.c
@@ -1839,6 +1839,7 @@ static void nvmet_host_release(struct config_item *item)
#ifdef CONFIG_NVME_TARGET_AUTH
kfree(host->dhchap_secret);
+ kfree(host->dhchap_ctrl_secret);
#endif
kfree(host);
}