Re:Re: Re: [PATCH v2] RDMA/srpt: fix NULL deref when sending BUSY before target_init_cmd()
kensanya <[email protected]> Mon, 27 Jul 2026 14:39:08 +0800 (CST)
| Newsgroups | org.kernel.vger.target-devel,org.kernel.vger.linux-kernel,org.kernel.vger.linux-rdma |
|---|---|
| Message-ID | <[email protected]> |
CgpBdCAyMDI2LTA3LTI2IDE1OjU1OjExLCAiTGVvbiBSb21hbm92c2t5IiA8bGVvbkBrZXJuZWwu b3JnPiB3cm90ZToKPk9uIEZyaSwgSnVsIDI0LCAyMDI2IGF0IDEwOjQyOjUzQU0gKzA4MDAsIGtl bnNhbnlhIHdyb3RlOgo+PiBBdCAyMDI2LTA3LTIzIDE3OjUxOjIwLCAiTGVvbiBSb21hbm92c2t5 IiA8bGVvbkBrZXJuZWwub3JnPiB3cm90ZToKPj4gPk9uIFRodSwgSnVsIDIzLCAyMDI2IGF0IDEw OjQ0OjU2QU0gKzA4MDAsIGtlbnNhbnlhQDE2My5jb20gd3JvdGU6Cj4+ID4+IEZyb206IFRhblpo ZW5nIDx0YW56aGVuZ0BreWxpbm9zLmNuPgo+PiA+PiAKPj4gPj4gSWYgc3JwdF9nZXRfZGVzY190 YmwoKSBmYWlscywgc3JwdF9oYW5kbGVfY21kKCkganVtcHMgdG8KPj4gPj4gdGFyZ2V0X3NlbmRf YnVzeSgpIGJlZm9yZSB0YXJnZXRfaW5pdF9jbWQoKSBoYXMgc2V0IGNtZC0+c2VfdGZvLgo+PiA+ PiB0YXJnZXRfc2VuZF9idXN5KCkgdGhlbiBkZXJlZmVyZW5jZXMgYSBOVUxMIHNlX3Rmby4KPj4g Pj4gCj4+ID4+IENhbGwgdGFyZ2V0X2luaXRfY21kKCkgZmlyc3Qgd2l0aCBwbGFjZWhvbGRlciBk YXRhX2xlbmd0aCBhbmQKPj4gPj4gZGF0YV9kaXJlY3Rpb24sIHBhcnNlIHRoZSBkZXNjcmlwdG9y IHRhYmxlIG5leHQsIHRoZW4gZmlsbCBpbiB0aGUKPj4gPj4gcmVhbCBkYXRhX2xlbmd0aC4gVGhh dCB3YXkgdGFyZ2V0X3NlbmRfYnVzeSgpIGlzIHNhZmUgaWYgcGFyc2luZwo+PiA+PiBmYWlscy4K Pj4gPj4gCj4+ID4+IHRhcmdldF9zZW5kX2J1c3koKSBpcyBvbmx5IHZhbGlkIGFmdGVyIGEgc3Vj Y2Vzc2Z1bCB0YXJnZXRfaW5pdF9jbWQoKS4KPj4gPj4gSWYgdGFyZ2V0X2luaXRfY21kKCkgaXRz ZWxmIGZhaWxzLCBmcmVlIHRoZSBzZW5kIGlvY3R4IHRhZyBsb2NhbGx5Cj4+ID4+IHdpdGggdGFy Z2V0X2ZyZWVfdGFnKCkgaW5zdGVhZCBvZiBjYWxsaW5nIHRhcmdldF9zZW5kX2J1c3koKS4KPj4g Pj4gCj4+ID4+IEZpeGVzOiA4Yjg4MDdiOWU5ODIgKCJzY3NpOiBSRE1BL3NycHQ6IEZpeCBoYW5k bGluZyBvZiBjb21tYW5kIC8gVE1GIHN1Ym1pc3Npb24gZmFpbHVyZSIpCj4+ID4+IExpbms6IGh0 dHBzOi8vbG9yZS5rZXJuZWwub3JnL2FsbC8yMDI2MDcxNzAyNTQwMi42NDA1NC0xLWtlbnNhbnlh QDE2My5jb20vCj4+ID4+IFN1Z2dlc3RlZC1ieTogQmFydCBWYW4gQXNzY2hlIDxidmFuYXNzY2hl QGFjbS5vcmc+Cj4+ID4+IFNpZ25lZC1vZmYtYnk6IFRhblpoZW5nIDx0YW56aGVuZ0BreWxpbm9z LmNuPgo+PiA+PiAtLS0KPj4gPj4gdjI6Cj4+ID4+IC0gT24gdGFyZ2V0X2luaXRfY21kKCkgZmFp bHVyZSwgdXNlIHRhcmdldF9mcmVlX3RhZygpIGluc3RlYWQgb2YKPj4gPj4gICB0YXJnZXRfc2Vu ZF9idXN5KCkKPj4gPj4gCj4+ID4+ICBkcml2ZXJzL2luZmluaWJhbmQvdWxwL3NycHQvaWJfc3Jw dC5jIHwgMzYgKysrKysrKysrKysrKysrKysrKy0tLS0tLS0tCj4+ID4+ICAxIGZpbGUgY2hhbmdl ZCwgMjYgaW5zZXJ0aW9ucygrKSwgMTAgZGVsZXRpb25zKC0pCj4+ID4+IAo+PiA+PiBkaWZmIC0t Z2l0IGEvZHJpdmVycy9pbmZpbmliYW5kL3VscC9zcnB0L2liX3NycHQuYyBiL2RyaXZlcnMvaW5m aW5pYmFuZC91bHAvc3JwdC9pYl9zcnB0LmMKPj4gPj4gaW5kZXggZjY2Y2ZkNzBjMjYzLi43MWFm MWZiMGQzODAgMTAwNjQ0Cj4+ID4+IC0tLSBhL2RyaXZlcnMvaW5maW5pYmFuZC91bHAvc3JwdC9p Yl9zcnB0LmMKPj4gPj4gKysrIGIvZHJpdmVycy9pbmZpbmliYW5kL3VscC9zcnB0L2liX3NycHQu Ywo+PiA+PiBAQCAtMTU1OCw4ICsxNTU4LDggQEAgc3RhdGljIHZvaWQgc3JwdF9oYW5kbGVfY21k KHN0cnVjdCBzcnB0X3JkbWFfY2ggKmNoLAo+PiA+PiAgCXN0cnVjdCBzcnBfY21kICpzcnBfY21k Owo+PiA+PiAgCXN0cnVjdCBzY2F0dGVybGlzdCAqc2cgPSBOVUxMOwo+PiA+PiAgCXVuc2lnbmVk IHNnX2NudCA9IDA7Cj4+ID4+IC0JdTY0IGRhdGFfbGVuOwo+PiA+PiAtCWVudW0gZG1hX2RhdGFf ZGlyZWN0aW9uIGRpcjsKPj4gPj4gKwl1NjQgZGF0YV9sZW4gPSAwOwo+PiA+PiArCWVudW0gZG1h X2RhdGFfZGlyZWN0aW9uIGRpciA9IERNQV9OT05FOwo+PiA+PiAgCWludCByYzsKPj4gPj4gIAo+ PiA+PiAgCUJVR19PTighc2VuZF9pb2N0eCk7Cj4+ID4+IEBAIC0xNTg0LDYgKzE1ODQsMjUgQEAg c3RhdGljIHZvaWQgc3JwdF9oYW5kbGVfY21kKHN0cnVjdCBzcnB0X3JkbWFfY2ggKmNoLAo+PiA+ PiAgCQlicmVhazsKPj4gPj4gIAl9Cj4+ID4+ICAKPj4gPj4gKwkvKgo+PiA+PiArCSAqIENhbGwg dGFyZ2V0X2luaXRfY21kKCkgYmVmb3JlIHNycHRfZ2V0X2Rlc2NfdGJsKCkgc28gdGhhdAo+PiA+ PiArCSAqIGNtZC0+c2VfdGZvIGlzIHNldCBpZiBkZXNjcmlwdG9yIHBhcnNpbmcgZmFpbHMgYW5k Cj4+ID4+ICsJICogdGFyZ2V0X3NlbmRfYnVzeSgpIGlzIHVzZWQuIGRhdGFfbGVuZ3RoIGlzIGZp bGxlZCBpbiBhZnRlciBhCj4+ID4+ICsJICogc3VjY2Vzc2Z1bCBzcnB0X2dldF9kZXNjX3RibCgp Lgo+PiA+PiArCSAqCj4+ID4+ICsJICogdGFyZ2V0X3NlbmRfYnVzeSgpIGlzIG9ubHkgdmFsaWQg YWZ0ZXIgYSBzdWNjZXNzZnVsCj4+ID4+ICsJICogdGFyZ2V0X2luaXRfY21kKCkuIE9uIGluaXQg ZmFpbHVyZSBmcmVlIHRoZSB0YWcgbG9jYWxseS4KPj4gPj4gKwkgKi8KPj4gPj4gKwlyYyA9IHRh cmdldF9pbml0X2NtZChjbWQsIGNoLT5zZXNzLCAmc2VuZF9pb2N0eC0+c2Vuc2VfZGF0YVswXSwK Pj4gPj4gKwkJCSAgICAgc2NzaWx1bl90b19pbnQoJnNycF9jbWQtPmx1biksIDAgLyogZGF0YV9s ZW4gKi8sCj4+ID4+ICsJCQkgICAgIFRDTV9TSU1QTEVfVEFHLCBETUFfTk9ORSwgVEFSR0VUX1ND Rl9BQ0tfS1JFRik7Cj4+ID4KPj4gPjEuIFRDTV9TSU1QTEVfVEFHIC0+IHlvdSBuZWVkIHRvIHJl YmFzZSB0byBsYXRlc3QgcmRtYS1uZXh0Lgo+PiAKPj4gICAgICAgSSB3aWxsIG1vZGlmeSBhbmQg cmVzZW5kIHRoZSBwYXRjaC4KPj4gCj4+ID4yLiBZb3UgYXJlIGhhcmRjb2RpbmcgZGlyLCB3aGls ZSBpdCBjYW4gYmUgb3ZlcndyaXR0ZW4gaW4gc3JwdF9nZXRfZGVzY190YmwoKS4KPj4gCj4+ICAg ICAgIEluIHRoZSBzcnB0X2hhbmRsZV9jbWQoKSBmdW5jdGlvbjoKPj4gICAgICAgJnNlbmRfaW9j dHgtPmNtZDsKPj4gICAgICAgc3JwdF9nZXRfZGVzY190YmwoLi4uLCBzZW5kX2lvY3R4LCAuLi4p IAo+PiAgICAgICAgICAgIGlvY3R4LT5jbWQuZGF0YV9kaXJlY3Rpb24gPSAqZGlyOwo+PiAKPj4g ICAgICBUaGVyZWZvcmUsIGFmdGVyIHN1Y2Nlc3NmdWxseSBjYWxsaW5nIHNycHRfZ2V0X2Rlc2Nf dGJsKCksIGV2ZW4gaWYgdGFyZ2V0X2luaXRfY21kKCkgaXMKPj4gICAgICBwYXNzZWQgRE1BX05P TkUsIGNtZC0+ZGF0YV9kaXJlY3Rpb24gc2hvdWxkIGFscmVhZHkgaGF2ZSBzdG9yZWQgdGhlIGFj dHVhbCBkaXJlY3Rpb24uCj4+IAo+PiAgICAgIERvIHlvdSBtZWFuICB0aGF0IGFmdGVyIGNhbGxp bmcgc3JwdF9nZXRfZGVzY190YmwoKSwgZGlzcGxheWluZyB0aGUgb3ZlcndyaXR0ZW4gY29udGVu dAo+PiAgICAgIHdvdWxkIGJlIGJldHRlcqO/SSB3YW50IHRvIG1ha2Ugc3VyZSBJIGFkZHJlc3Mg dGhlIGludGVudCBvZiB5b3VyIGNvbW1lbnQgY29ycmVjdGx5Lgo+Cj5Zb3UgbmVlZCB0byBkbyB0 aGlzIGNvcnJlY3RseTogdGFyZ2V0X2luaXRfY21kKCkgbXVzdCByZWNlaXZlIHRoZQo+Y29ycmVj dCBkaXJlY3RvcnksIGFzIGNhbGN1bGF0ZWQgYnkgc3JwdF9nZXRfZGVzY190YmwoKS4KPgo+VGhh bmtzCj4KPj4gPgo+PiA+VGhhbmtzCj4+IAo+PiBUaGFua3MsCj4+IFRhblpoZW5nCgpUaGVyZSBp cyBhIGNvbnRyYWRpY3Rpb24gYmV0d2VlbiB0aGUgdHdvIHN1Z2dlc3Rpb25zOgotIEJhcnQgc3Vn Z2VzdHMgY2FsbGluZyB0YXJnZXRfaW5pdF9jbWQoKSBiZWZvcmUgY2FsbGluZwogICBzcnB0X2dl dF9kZXNjX3RibCgpICh1c2luZyBhIHBsYWNlaG9sZGVyKSB0byBlbnN1cmUgdGhhdAogICB0YXJn ZXRfc2VuZF9idXN5KCkgY2FuIGJlIHNhZmVseSBleGVjdXRlZCBpZiB0aGUKICAgZGVzY3JpcHRv ciBwYXJzaW5nIGZhaWxzLgotIExlb24gcG9pbnRzIG91dCB0aGF0IHRhcmdldF9pbml0X2NtZCgp IG11c3QgcmVjZWl2ZSB0aGUKICBhY3R1YWwgZGF0YSBkaXJlY3Rpb24gY2FsY3VsYXRlZCBieSBz cnB0X2dldF9kZXNjX3RibCgpLAogIHJhdGhlciB0aGFuIGEgcGxhY2Vob2xkZXIgbGlrZSBETUFf Tk9ORSB0aGF0IHdpbGwKICBiZSBvdmVyd3JpdHRlbiBsYXRlci4KCklmIHdlIGNvbnRpbnVlIHRv IG1vZGlmeSB0aGUgY3VycmVudCBwYXRjaCwgdGhlIG9ubHkgd2F5IEkKY2FuIHRoaW5rIG9mIGlz IHRvIGV4dHJhY3QgdGhlIGRpcmVjdGlvbiBwYXJzaW5nIGxvZ2ljIGZyb20Kc3JwdF9nZXRfZGVz Y190YmwgYW5kIHBsYWNlIGl0IGJlZm9yZSB0YXJnZXRfaW5pdF9jbWQsIHNvCnRoYXQgdGFyZ2V0 X2luaXRfY21kIGNhbiByZWNlaXZlIHRoZSBjb3JyZWN0IGRpcmVjdGlvbi4KSG93IGFib3V0IHRo aXM/CgpUaGFua3MsClRhblpoZW5nCg==