fabrics: avoid connect segfault for invalid param#3267
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igaw merged 1 commit intolinux-nvme:masterfrom Apr 16, 2026
Merged
fabrics: avoid connect segfault for invalid param#3267igaw merged 1 commit intolinux-nvme:masterfrom
igaw merged 1 commit intolinux-nvme:masterfrom
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The connect command segfaults if one passes an invalid param to it. For e.g. nvme connect disconnect required argument [--nqn | -n] not specified Segmentation fault (core dumped) Running gdb on the core revealed the segfault was due to dereferencing the fctx NULL pointer: Core was generated by `nvme connect disconnect'. Program terminated with signal SIGSEGV, Segmentation fault. libnvmf_context_free (fctx=0x0) at ../libnvme/src/nvme/fabrics.c:222 222 free(fctx->tls_key); (gdb) where libnvmf_context_free (fctx=0x0) at ../libnvme/src/nvme/fabrics.c:222 cleanup_nvmf_context (fctx=0x7ffd6f16ddf8) at ../util/cleanup.h:58 fabrics_connect (desc=<optimized out>, argc=<optimized out>, argv=0x7ffd6f16ee10) at ../fabrics.c:595 handle_plugin (argc=argc@entry=2, argv=argv@entry=0x7ffd6f16ee10, plugin=0x558480 <builtin>) at ../plugin.c:190 main (argc=3, argv=0x7ffd6f16ee08) at ../nvme.c:11313 Fix the same. Fixes: 27af156 ("fabrics: allow tls key to be a pin") Signed-off-by: Martin George <marting@netapp.com>
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The connect command segfaults if one passes an invalid param to it. For e.g.
nvme connect disconnect
required argument [--nqn | -n] not specified
Segmentation fault (core dumped)
Running gdb on the core revealed the segfault was due to dereferencing the fctx NULL pointer:
Core was generated by `nvme connect disconnect'.
Program terminated with signal SIGSEGV, Segmentation fault. libnvmf_context_free (fctx=0x0) at ../libnvme/src/nvme/fabrics.c:222
222 free(fctx->tls_key);
(gdb) where
libnvmf_context_free (fctx=0x0) at ../libnvme/src/nvme/fabrics.c:222
cleanup_nvmf_context (fctx=0x7ffd6f16ddf8) at ../util/cleanup.h:58
fabrics_connect (desc=, argc=, argv=0x7ffd6f16ee10) at ../fabrics.c:595
handle_plugin (argc=argc@entry=2, argv=argv@entry=0x7ffd6f16ee10, plugin=0x558480 ) at ../plugin.c:190
main (argc=3, argv=0x7ffd6f16ee08) at ../nvme.c:11313
Fix the same.
Fixes: 27af156 ("fabrics: allow tls key to be a pin")