{"cve":"CVE-2022-49592","nvd":{"published":"2025-02-26T07:01:34.760","modified":"2026-06-17T05:18:33.747","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: stmmac: fix dma queue left shift overflow issue\n\nWhen queue number is > 4, left shift overflows due to 32 bits\ninteger variable. Mask calculation is wrong for MTL_RXQ_DMA_MAP1.\n\nIf CONFIG_UBSAN is enabled, kernel dumps below warning:\n[   10.363842] ==================================================================\n[   10.363882] UBSAN: shift-out-of-bounds in /build/linux-intel-iotg-5.15-8e6Tf4/\nlinux-intel-iotg-5.15-5.15.0/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c:224:12\n[   10.363929] shift exponent 40 is too large for 32-bit type 'unsigned int'\n[   10.363953] CPU: 1 PID: 599 Comm: NetworkManager Not tainted 5.15.0-1003-intel-iotg\n[   10.363956] Hardware name: ADLINK Technology Inc. LEC-EL/LEC-EL, BIOS 0.15.11 12/22/2021\n[   10.363958] Call Trace:\n[   10.363960]  <TASK>\n[   10.363963]  dump_stack_lvl+0x4a/0x5f\n[   10.363971]  dump_stack+0x10/0x12\n[   10.363974]  ubsan_epilogue+0x9/0x45\n[   10.363976]  __ubsan_handle_shift_out_of_bounds.cold+0x61/0x10e\n[   10.363979]  ? wake_up_klogd+0x4a/0x50\n[   10.363983]  ? vprintk_emit+0x8f/0x240\n[   10.363986]  dwmac4_map_mtl_dma.cold+0x42/0x91 [stmmac]\n[   10.364001]  stmmac_mtl_configuration+0x1ce/0x7a0 [stmmac]\n[   10.364009]  ? dwmac410_dma_init_channel+0x70/0x70 [stmmac]\n[   10.364020]  stmmac_hw_setup.cold+0xf/0xb14 [stmmac]\n[   10.364030]  ? page_pool_alloc_pages+0x4d/0x70\n[   10.364034]  ? stmmac_clear_tx_descriptors+0x6e/0xe0 [stmmac]\n[   10.364042]  stmmac_open+0x39e/0x920 [stmmac]\n[   10.364050]  __dev_open+0xf0/0x1a0\n[   10.364054]  __dev_change_flags+0x188/0x1f0\n[   10.364057]  dev_change_flags+0x26/0x60\n[   10.364059]  do_setlink+0x908/0xc40\n[   10.364062]  ? do_setlink+0xb10/0xc40\n[   10.364064]  ? __nla_validate_parse+0x4c/0x1a0\n[   10.364068]  __rtnl_newlink+0x597/0xa10\n[   10.364072]  ? __nla_reserve+0x41/0x50\n[   10.364074]  ? __kmalloc_node_track_caller+0x1d0/0x4d0\n[   10.364079]  ? pskb_expand_head+0x75/0x310\n[   10.364082]  ? nla_reserve_64bit+0x21/0x40\n[   10.364086]  ? skb_free_head+0x65/0x80\n[   10.364089]  ? security_sock_rcv_skb+0x2c/0x50\n[   10.364094]  ? __cond_resched+0x19/0x30\n[   10.364097]  ? kmem_cache_alloc_trace+0x15a/0x420\n[   10.364100]  rtnl_newlink+0x49/0x70\n\nThis change fixes MTL_RXQ_DMA_MAP1 mask issue and channel/queue\nmapping warning.\n\nBugLink: https://bugzilla.kernel.org/show_bug.cgi?id=216195","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-787"],"references":["https://git.kernel.org/stable/c/508d86ead36cbd8dfb60773a33276790d668c473","https://git.kernel.org/stable/c/573768dede0e2b7de38ecbc11cb3ee47643902dc","https://git.kernel.org/stable/c/613b065ca32e90209024ec4a6bb5ca887ee70980","https://git.kernel.org/stable/c/7c687a893f5cae5ca40d189635602e93af9bab73","https://git.kernel.org/stable/c/a3ac79f38d354b10925824899cdbd2caadce55ba"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2022-49592","score":0.00284,"percentile":0.20977,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}