In the Linux kernel, the following vulnerability has been resolved:

orangefs: Fix kmemleak in orangefs{kernel,client}debuginit()

When insert and remove the orangefs module, there are memory leaked as below:

unreferenced object 0xffff88816b0cc000 (size 2048): comm "insmod", pid 783, jiffies 4294813439 (age 65.512s) hex dump (first 32 bytes): 6e 6f 6e 65 0a 00 00 00 00 00 00 00 00 00 00 00 none............ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000031ab7788>] kmalloctrace+0x27/0xa0 [<000000005b405fee>] orangefsdebugfsinit.cold+0xaf/0x17f [<00000000e5a0085b>] 0xffffffffa02780f9 [<000000004232d9f7>] dooneinitcall+0x87/0x2a0 [<0000000054f22384>] doinitmodule+0xdf/0x320 [<000000003263bdea>] loadmodule+0x2f98/0x3330 [<0000000052cd4153>] dosysfinitmodule+0x113/0x1b0 [<00000000250ae02b>] dosyscall64+0x35/0x80 [<00000000f11c03c7>] entrySYSCALL64afterhwframe+0x46/0xb0

Use the golbal variable as the buffer rather than dynamic allocate to slove the problem.

In the Linux kernel, the following vulnerability has been resolved:

orangefs: Fix kmemleak in orangefssysfsinit()

When insert and remove the orangefs module, there are kobjects memory leaked as below:

unreferenced object 0xffff88810f95af00 (size 64): comm "insmod", pid 783, jiffies 4294813439 (age 65.512s) hex dump (first 32 bytes): a0 83 af 01 81 88 ff ff 08 af 95 0f 81 88 ff ff ................ 08 af 95 0f 81 88 ff ff 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000031ab7788>] kmalloctrace+0x27/0xa0 [<000000005a6e4dfe>] orangefssysfsinit+0x42/0x3a0 [<00000000722645ca>] 0xffffffffa02780fe [<000000004232d9f7>] dooneinitcall+0x87/0x2a0 [<0000000054f22384>] doinitmodule+0xdf/0x320 [<000000003263bdea>] loadmodule+0x2f98/0x3330 [<0000000052cd4153>] dosysfinitmodule+0x113/0x1b0 [<00000000250ae02b>] dosyscall64+0x35/0x80 [<00000000f11c03c7>] entrySYSCALL64afterhwframe+0x46/0xb0

unreferenced object 0xffff88810f95ae80 (size 64): comm "insmod", pid 783, jiffies 4294813439 (age 65.512s) hex dump (first 32 bytes): c8 90 0f 02 81 88 ff ff 88 ae 95 0f 81 88 ff ff ................ 88 ae 95 0f 81 88 ff ff 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000031ab7788>] kmalloctrace+0x27/0xa0 [<000000001a4841fa>] orangefssysfsinit+0xc7/0x3a0 [<00000000722645ca>] 0xffffffffa02780fe [<000000004232d9f7>] dooneinitcall+0x87/0x2a0 [<0000000054f22384>] doinitmodule+0xdf/0x320 [<000000003263bdea>] loadmodule+0x2f98/0x3330 [<0000000052cd4153>] dosysfinitmodule+0x113/0x1b0 [<00000000250ae02b>] dosyscall64+0x35/0x80 [<00000000f11c03c7>] entrySYSCALL64afterhwframe+0x46/0xb0

unreferenced object 0xffff88810f95ae00 (size 64): comm "insmod", pid 783, jiffies 4294813440 (age 65.511s) hex dump (first 32 bytes): 60 87 a1 00 81 88 ff ff 08 ae 95 0f 81 88 ff ff ............... 08 ae 95 0f 81 88 ff ff 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000031ab7788>] kmalloctrace+0x27/0xa0 [<000000005915e797>] orangefssysfsinit+0x12b/0x3a0 [<00000000722645ca>] 0xffffffffa02780fe [<000000004232d9f7>] dooneinitcall+0x87/0x2a0 [<0000000054f22384>] doinitmodule+0xdf/0x320 [<000000003263bdea>] loadmodule+0x2f98/0x3330 [<0000000052cd4153>] dosysfinitmodule+0x113/0x1b0 [<00000000250ae02b>] dosyscall64+0x35/0x80 [<00000000f11c03c7>] entrySYSCALL64afterhwframe+0x46/0xb0

unreferenced object 0xffff88810f95ad80 (size 64): comm "insmod", pid 783, jiffies 4294813440 (age 65.511s) hex dump (first 32 bytes): 78 90 0f 02 81 88 ff ff 88 ad 95 0f 81 88 ff ff x............... 88 ad 95 0f 81 88 ff ff 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000031ab7788>] kmalloctrace+0x27/0xa0 [<000000007a14eb35>] orangefssysfsinit+0x1ac/0x3a0 [<00000000722645ca>] 0xffffffffa02780fe [<000000004232d9f7>] dooneinitcall+0x87/0x2a0 [<0000000054f22384>] doinitmodule+0xdf/0x320 [<000000003263bdea>] loadmodule+0x2f98/0x3330 [<0000000052cd4153>] dosysfinitmodule+0x113/0x1b0 [<00000000250ae02b>] dosyscall64+0x35/0x80 [<00000000f11c03c7>] entrySYSCALL64afterhwframe+0x46/0xb0

unreferenced object 0xffff88810f95ac00 (size 64): comm "insmod", pid 783, jiffies 4294813440 (age 65.531s) hex dump (first 32 bytes): e0 ff 67 02 81 88 ff ff 08 ac 95 0f 81 88 ff ff ..g............. 08 ac 95 0f 81 88 ff ff 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000031ab7788>] kmalloctrace+0x27/0xa0 [<000000001f38adcb>] orangefssysfsinit+0x291/0x3a0 [<00000000722645ca>] 0xffffffffa02780fe [<000000004232d9f7>] dooneinitcall+0x87/0x2a0 [<0000000054f22384>] doinitmodule+0xdf/0x320 [<000000003263bdea>] loadmodule+0x2f98/0x3330 [<0000000052cd4153>] dosysfinitmodule+0x113/0x1b0 [<00000000250ae02b>] dosyscall64+0x35/ ---truncated---