DEBIAN-CVE-2022-50475

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Make sure "ibport" is valid when access sysfs node The "ibport" structure must be set before adding the sysfs kobject, and reset after removing it, otherwise it may crash when accessing the sysfs node: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000050 Mem abort info: ESR = 0x96000006 Exception class = DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgdp = 00000000e85f5ba5 [0000000000000050] pgd=0000000848fd9003, pud=000000085b387003, pmd=0000000000000000 Internal error: Oops: 96000006 [#2] PREEMPT SMP Modules linked in: ibumad(O) mlx5ib(O) nfnetlinkcttimeout(E) nfnetlink(E) actgact(E) clsflower(E) schingress(E) openvswitch(E) nsh(E) nfnatipv6(E) nfnatipv4(E) nfconncount(E) nfnat(E) nfconntrack(E) nfdefragipv6(E) nfdefragipv4(E) mstpciconf(O) ipmidevintf(E) ipmimsghandler(E) ipmbdevint(OE) mlx5core(O) mlxfw(O) mlxdevm(O) auxiliary(O) ibuverbs(O) ibcore(O) mlxcompat(O) psample(E) sbsagwdt(E) uiopdrvgenirq(E) uio(E) mlxbfpmc(OE) mlxbfgige(OE) mlxbftmfifo(OE) gpiomlxbf2(OE) pwrmlxbf(OE) mlxtrio(OE) i2cmlxbf(OE) mlxbootctl(OE) bluefieldedac(OE) knem(O) iptables(E) ipv6(E) crcccitt(E) [last unloaded: mstpci] Process grep (pid: 3372, stack limit = 0x0000000022055c92) CPU: 5 PID: 3372 Comm: grep Tainted: G D OE 4.19.161-mlnx.47.gadcd9e3 #1 Hardware name: https://www.mellanox.com BlueField SoC/BlueField SoC, BIOS BlueField:3.9.2-15-ga2403ab Sep 8 2022 pstate: 40000005 (nZcv daif -PAN -UAO) pc : hwstatportshow+0x4c/0x80 [ibcore] lr : portattrshow+0x40/0x58 [ibcore] sp : ffff000029f43b50 x29: ffff000029f43b50 x28: 0000000019375000 x27: ffff8007b821a540 x26: ffff000029f43e30 x25: 0000000000008000 x24: ffff000000eaa958 x23: 0000000000001000 x22: ffff8007a4ce3000 x21: ffff8007baff8000 x20: ffff8007b9066ac0 x19: ffff8007bae97578 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : ffff8007a4ce4000 x7 : 0000000000000000 x6 : 000000000000003f x5 : ffff000000e6a280 x4 : ffff8007a4ce3000 x3 : 0000000000000000 x2 : aaaaaaaaaaaaaaab x1 : ffff8007b9066a10 x0 : ffff8007baff8000 Call trace: hwstatportshow+0x4c/0x80 [ibcore] portattrshow+0x40/0x58 [ibcore] sysfskfseqshow+0x8c/0x150 kernfsseqshow+0x44/0x50 seqread+0x1b4/0x45c kernfsfopread+0x148/0x1d8 _vfsread+0x58/0x180 vfsread+0x94/0x154 ksysread+0x68/0xd8 _arm64sysread+0x28/0x34 el0svccommon+0x88/0x18c el0svchandler+0x78/0x94 el0_svc+0x8/0xe8 Code: f2955562 aa1603e4 aa1503e0 f9405683 (f9402861)