In the Linux kernel, the following vulnerability has been resolved: xprtrdma: treat all calls not a bcall when bc_serv is NULL When a rdma server returns a fault format reply, nfs v3 client may treats it as a bcall when bc service is not exist. The debug message at rpcrdma_bc_receive_call are, [56579.837169] RPC: rpcrdma_bc_receive_call: callback XID 00000001, length=20 [56579.837174] RPC: rpcrdma_bc_receive_call: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 After that, rpcrdma_bc_receive_call will meets NULL pointer as, [ 226.057890] BUG: unable to handle kernel NULL pointer dereference at 00000000000000c8 ... [ 226.058704] RIP: 0010:_raw_spin_lock+0xc/0x20 ... [ 226.059732] Call Trace: [ 226.059878] rpcrdma_bc_receive_call+0x138/0x327 [rpcrdma] [ 226.060011] __ib_process_cq+0x89/0x170 [ib_core] [ 226.060092] ib_cq_poll_work+0x26/0x80 [ib_core] [ 226.060257] process_one_work+0x1a7/0x360 [ 226.060367] ? create_worker+0x1a0/0x1a0 [ 226.060440] worker_thread+0x30/0x390 [ 226.060500] ? create_worker+0x1a0/0x1a0 [ 226.060574] kthread+0x116/0x130 [ 226.060661] ? kthread_flush_work_fn+0x10/0x10 [ 226.060724] ret_from_fork+0x35/0x40 ...
In the Linux kernel, the following vulnerability has been resolved: xprtrdma: treat all calls not a bcall when bc_serv is NULL When a rdma server returns a fault format reply, nfs v3 client may treats it as a bcall when bc service is not exist. The debug message at rpcrdma_bc_receive_call are, [56579.837169] RPC: rpcrdma_bc_receive_call: callback XID 00000001, length=20 [56579.837174] RPC: rpcrdma_bc_receive_call: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 After that, rpcrdma_bc_receive_call will meets NULL pointer as, [ 226.057890] BUG: unable to handle kernel NULL pointer dereference at 00000000000000c8 ... [ 226.058704] RIP: 0010:_raw_spin_lock+0xc/0x20 ... [ 226.059732] Call Trace: [ 226.059878] rpcrdma_bc_receive_call+0x138/0x327 [rpcrdma] [ 226.060011] __ib_process_cq+0x89/0x170 [ib_core] [ 226.060092] ib_cq_poll_work+0x26/0x80 [ib_core] [ 226.060257] process_one_work+0x1a7/0x360 [ 226.060367] ? create_worker+0x1a0/0x1a0 [ 226.060440] worker_thread+0x30/0x390 [ 226.060500] ? create_worker+0x1a0/0x1a0 [ 226.060574] kthread+0x116/0x130 [ 226.060661] ? kthread_flush_work_fn+0x10/0x10 [ 226.060724] ret_from_fork+0x35/0x40 ...
Update Linux/Linux to 8e3943c50764dc7c5f25911970c3ff062ec1f18c if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanxprtrdma: treat all calls not a bcall when bc_serv is NULL affects Linux/Linux (generic), Linux/Linux (generic). Severity is high. In the Linux kernel, the following vulnerability has been resolved: xprtrdma: treat all calls not a bcall when bc_serv is NULL When a rdma server returns a fault format reply, nfs v3 client may treats it as a bcall when bc service is not exist. The debug message at rpcrdma_bc_receive_call are, [56579.837169] RPC: rpcrdma_bc_receive_call: callback XID 00000001, length=20 [56579.837174] RPC: rpcrdma_bc_receive_call: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 After that, rpcrdma_bc_receive_call will meets NULL pointer as, [ 226.057890] BUG: unable to handle kernel NULL pointer dereference at 00000000000000c8 ... [ 226.058704] RIP: 0010:_raw_spin_lock+0xc/0x20 ... [ 226.059732] Call Trace: [ 226.059878] rpcrdma_bc_receive_call+0x138/0x327 [rpcrdma] [ 226.060011] __ib_process_cq+0x89/0x170 [ib_core] [ 226.060092] ib_cq_poll_work+0x26/0x80 [ib_core] [ 226.060257] process_one_work+0x1a7/0x360 [ 226.060367] ? create_worker+0x1a0/0x1a0 [ 226.060440] worker_thread+0x30/0x390 [ 226.060500] ? create_worker+0x1a0/0x1a0 [ 226.060574] kthread+0x116/0x130 [ 226.060661] ? kthread_flush_work_fn+0x10/0x10 [ 226.060724] ret_from_fork+0x35/0x40 ...
AI coding agents often install or upgrade packages automatically in generic. A high vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | 4.4 | Not reported |
| Linux/Linuxgeneric | >=63cae47005af51c937f4cdcc4835f29075add2ba <8e3943c50764dc7c5f25911970c3ff062ec1f18c || >=63cae47005af51c937f4cdcc4835f29075add2ba <998d35a2aff4b81a1c784f3aa45cd3afff6814c1 || >=63cae47005af51c937f4cdcc4835f29075add2ba <da99331fa62131a38a0947a8204c5208de7b0454 || >=63cae47005af51c937f4cdcc4835f29075add2ba <8dbae5affbdbf524b48000f9d357925bb001e5f4 || >=63cae47005af51c937f4cdcc4835f29075add2ba <a3fc8051ee061e31db13e2fe011e8e0b71a7f815 || >=63cae47005af51c937f4cdcc4835f29075add2ba <90c4f73104016748533a5707ecd15930fbeff402 || >=63cae47005af51c937f4cdcc4835f29075add2ba <91784f3d77b73885e1b2e6b59d3cbf0de0a1126a || >=63cae47005af51c937f4cdcc4835f29075add2ba <11270e7ca268e8d61b5d9e5c3a54bd1550642c9c | 8e3943c50764dc7c5f25911970c3ff062ec1f18c, 998d35a2aff4b81a1c784f3aa45cd3afff6814c1, da99331fa62131a38a0947a8204c5208de7b0454, 8dbae5affbdbf524b48000f9d357925bb001e5f4, a3fc8051ee061e31db13e2fe011e8e0b71a7f815, 90c4f73104016748533a5707ecd15930fbeff402, 91784f3d77b73885e1b2e6b59d3cbf0de0a1126a, 11270e7ca268e8d61b5d9e5c3a54bd1550642c9c |
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by CVE List V5 (cvelist).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL GuardUpdate Linux/Linux to 8e3943c50764dc7c5f25911970c3ff062ec1f18c if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanxprtrdma: treat all calls not a bcall when bc_serv is NULL affects Linux/Linux (generic), Linux/Linux (generic). Severity is high. In the Linux kernel, the following vulnerability has been resolved: xprtrdma: treat all calls not a bcall when bc_serv is NULL When a rdma server returns a fault format reply, nfs v3 client may treats it as a bcall when bc service is not exist. The debug message at rpcrdma_bc_receive_call are, [56579.837169] RPC: rpcrdma_bc_receive_call: callback XID 00000001, length=20 [56579.837174] RPC: rpcrdma_bc_receive_call: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 After that, rpcrdma_bc_receive_call will meets NULL pointer as, [ 226.057890] BUG: unable to handle kernel NULL pointer dereference at 00000000000000c8 ... [ 226.058704] RIP: 0010:_raw_spin_lock+0xc/0x20 ... [ 226.059732] Call Trace: [ 226.059878] rpcrdma_bc_receive_call+0x138/0x327 [rpcrdma] [ 226.060011] __ib_process_cq+0x89/0x170 [ib_core] [ 226.060092] ib_cq_poll_work+0x26/0x80 [ib_core] [ 226.060257] process_one_work+0x1a7/0x360 [ 226.060367] ? create_worker+0x1a0/0x1a0 [ 226.060440] worker_thread+0x30/0x390 [ 226.060500] ? create_worker+0x1a0/0x1a0 [ 226.060574] kthread+0x116/0x130 [ 226.060661] ? kthread_flush_work_fn+0x10/0x10 [ 226.060724] ret_from_fork+0x35/0x40 ...
AI coding agents often install or upgrade packages automatically in generic. A high vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | 4.4 | Not reported |
| Linux/Linuxgeneric | >=63cae47005af51c937f4cdcc4835f29075add2ba <8e3943c50764dc7c5f25911970c3ff062ec1f18c || >=63cae47005af51c937f4cdcc4835f29075add2ba <998d35a2aff4b81a1c784f3aa45cd3afff6814c1 || >=63cae47005af51c937f4cdcc4835f29075add2ba <da99331fa62131a38a0947a8204c5208de7b0454 || >=63cae47005af51c937f4cdcc4835f29075add2ba <8dbae5affbdbf524b48000f9d357925bb001e5f4 || >=63cae47005af51c937f4cdcc4835f29075add2ba <a3fc8051ee061e31db13e2fe011e8e0b71a7f815 || >=63cae47005af51c937f4cdcc4835f29075add2ba <90c4f73104016748533a5707ecd15930fbeff402 || >=63cae47005af51c937f4cdcc4835f29075add2ba <91784f3d77b73885e1b2e6b59d3cbf0de0a1126a || >=63cae47005af51c937f4cdcc4835f29075add2ba <11270e7ca268e8d61b5d9e5c3a54bd1550642c9c | 8e3943c50764dc7c5f25911970c3ff062ec1f18c, 998d35a2aff4b81a1c784f3aa45cd3afff6814c1, da99331fa62131a38a0947a8204c5208de7b0454, 8dbae5affbdbf524b48000f9d357925bb001e5f4, a3fc8051ee061e31db13e2fe011e8e0b71a7f815, 90c4f73104016748533a5707ecd15930fbeff402, 91784f3d77b73885e1b2e6b59d3cbf0de0a1126a, 11270e7ca268e8d61b5d9e5c3a54bd1550642c9c |
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by CVE List V5 (cvelist).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard