fkie_cve-2024-35901
Vulnerability from fkie_nvd
Published
2024-05-19 09:15
Modified
2024-11-21 09:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix Rx DMA datasize and skb_over_panic mana_get_rxbuf_cfg() aligns the RX buffer's DMA datasize to be multiple of 64. So a packet slightly bigger than mtu+14, say 1536, can be received and cause skb_over_panic. Sample dmesg: [ 5325.237162] skbuff: skb_over_panic: text:ffffffffc043277a len:1536 put:1536 head:ff1100018b517000 data:ff1100018b517100 tail:0x700 end:0x6ea dev:<NULL> [ 5325.243689] ------------[ cut here ]------------ [ 5325.245748] kernel BUG at net/core/skbuff.c:192! [ 5325.247838] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI [ 5325.258374] RIP: 0010:skb_panic+0x4f/0x60 [ 5325.302941] Call Trace: [ 5325.304389] <IRQ> [ 5325.315794] ? skb_panic+0x4f/0x60 [ 5325.317457] ? asm_exc_invalid_op+0x1f/0x30 [ 5325.319490] ? skb_panic+0x4f/0x60 [ 5325.321161] skb_put+0x4e/0x50 [ 5325.322670] mana_poll+0x6fa/0xb50 [mana] [ 5325.324578] __napi_poll+0x33/0x1e0 [ 5325.326328] net_rx_action+0x12e/0x280 As discussed internally, this alignment is not necessary. To fix this bug, remove it from the code. So oversized packets will be marked as CQE_RX_TRUNCATED by NIC, and dropped.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/05cb7c41fa1a7a7b2c2a6b81bbe7c67f5c11932b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c0de6ab920aafb56feab56058e46b688e694a246
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ca58927b00385005f488b6a9905ced7a4f719aad
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/05cb7c41fa1a7a7b2c2a6b81bbe7c67f5c11932b
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c0de6ab920aafb56feab56058e46b688e694a246
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ca58927b00385005f488b6a9905ced7a4f719aad
Impacted products
Vendor Product Version


To clipboard 

{
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: Fix Rx DMA datasize and skb_over_panic\n\nmana_get_rxbuf_cfg() aligns the RX buffer's DMA datasize to be\nmultiple of 64. So a packet slightly bigger than mtu+14, say 1536,\ncan be received and cause skb_over_panic.\n\nSample dmesg:\n[ 5325.237162] skbuff: skb_over_panic: text:ffffffffc043277a len:1536 put:1536 head:ff1100018b517000 data:ff1100018b517100 tail:0x700 end:0x6ea dev:<NULL>\n[ 5325.243689] ------------[ cut here ]------------\n[ 5325.245748] kernel BUG at net/core/skbuff.c:192!\n[ 5325.247838] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n[ 5325.258374] RIP: 0010:skb_panic+0x4f/0x60\n[ 5325.302941] Call Trace:\n[ 5325.304389]  <IRQ>\n[ 5325.315794]  ? skb_panic+0x4f/0x60\n[ 5325.317457]  ? asm_exc_invalid_op+0x1f/0x30\n[ 5325.319490]  ? skb_panic+0x4f/0x60\n[ 5325.321161]  skb_put+0x4e/0x50\n[ 5325.322670]  mana_poll+0x6fa/0xb50 [mana]\n[ 5325.324578]  __napi_poll+0x33/0x1e0\n[ 5325.326328]  net_rx_action+0x12e/0x280\n\nAs discussed internally, this alignment is not necessary. To fix\nthis bug, remove it from the code. So oversized packets will be\nmarked as CQE_RX_TRUNCATED by NIC, and dropped.",
      },
      {
         lang: "es",
         value: "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: mana: Fix Rx DMA datasize y skb_over_panic mana_get_rxbuf_cfg() alinea el tamaño de datos DMA del buffer RX para que sea múltiplo de 64. Entonces, un paquete ligeramente más grande que mtu+14, digamos 1536, se puede recibir y causar skb_over_panic. Dmesg de muestra: [5325.237162] skbuff: skb_over_panic: text:ffffffffc043277a len:1536 put:1536 head:ff1100018b517000 data:ff1100018b517100 tail:0x700 end:0x6ea dev: [ 689] ----------- -[ cortar aquí ]------------ ¡BUG del kernel [5325.245748] en net/core/skbuff.c:192! [ 5325.247838] código de operación no válido: 0000 [#1] PREEMPT SMP NOPTI [ 5325.258374] RIP: 0010:skb_panic+0x4f/0x60 [ 5325.302941] Seguimiento de llamadas: [ 5325.304389]  [ 5325.315794] ? skb_panic+0x4f/0x60 [5325.317457]? asm_exc_invalid_op+0x1f/0x30 [5325.319490]? skb_panic+0x4f/0x60 [ 5325.321161] skb_put+0x4e/0x50 [ 5325.322670] mana_poll+0x6fa/0xb50 [mana] [ 5325.324578] __napi_poll+0x33/0x1e0 [ 5325.326328 ] net_rx_action+0x12e/0x280 Como se analizó internamente, esta alineación no es necesaria. Para corregir este error, elimínelo del código. Por lo tanto, los paquetes de gran tamaño serán marcados como CQE_RX_TRUNCATED por NIC y descartados.",
      },
   ],
   id: "CVE-2024-35901",
   lastModified: "2024-11-21T09:21:09.867",
   metrics: {},
   published: "2024-05-19T09:15:10.967",
   references: [
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         url: "https://git.kernel.org/stable/c/05cb7c41fa1a7a7b2c2a6b81bbe7c67f5c11932b",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         url: "https://git.kernel.org/stable/c/c0de6ab920aafb56feab56058e46b688e694a246",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         url: "https://git.kernel.org/stable/c/ca58927b00385005f488b6a9905ced7a4f719aad",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://git.kernel.org/stable/c/05cb7c41fa1a7a7b2c2a6b81bbe7c67f5c11932b",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://git.kernel.org/stable/c/c0de6ab920aafb56feab56058e46b688e694a246",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://git.kernel.org/stable/c/ca58927b00385005f488b6a9905ced7a4f719aad",
      },
   ],
   sourceIdentifier: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
   vulnStatus: "Awaiting Analysis",
}


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