248 lines
13 KiB
JSON
248 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-89780",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-09-11T19:38:34.765Z",
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"datePublished": "2026-09-16T08:48:19.760Z",
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"dateUpdated": "2026-10-19T08:52:32.479Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-10-19T08:52:32.479Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qualcomm: rmnet: restore skb->dev on deaggregated frames\n\nrmnet_map_deaggregate() allocates each sub-frame with alloc_skb() and\nleaves skb->dev NULL. __rmnet_map_ingress_handler() assigns\nskb->dev = ep->egress_dev only on the data path, but a MAP command frame\nis dispatched to rmnet_map_command() before that, so rmnet_map_send_ack()\nruns netif_tx_lock(skb->dev) on a NULL device. An unprivileged user\nreaches this by unsharing a user+net namespace, creating an rmnet link\nover a tap device with INGRESS_DEAGGREGATION and INGRESS_MAP_COMMANDS,\nand writing an aggregated frame carrying a flow-control command to the\ntap fd.\n\nRestore the assignment dropped by 378e25357ac7, so every skb leaving\nrmnet_map_deaggregate() has a valid device.\n\n BUG: KASAN: null-ptr-deref in _raw_spin_lock (kernel/locking/spinlock.c:158)\n Write of size 4 at addr 00000000000004b4 by task exploit/144\n Call Trace:\n _raw_spin_lock (kernel/locking/spinlock.c:158)\n netif_tx_lock (net/sched/sch_generic.c:497)\n rmnet_map_command (drivers/net/ethernet/qualcomm/rmnet/rmnet_map_command.c:67)\n rmnet_rx_handler (drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c:125)\n __netif_receive_skb_core.constprop.0 (net/core/dev.c:6103)\n ...\n __netif_receive_skb_one_core (net/core/dev.c:6214)\n netif_receive_skb (net/core/dev.c:6474)\n tun_get_user (drivers/net/tun.c:1966)\n tun_chr_write_iter (drivers/net/tun.c:2012)\n vfs_write (fs/read_write.c:687)\n ksys_write (fs/read_write.c:739)\n do_syscall_64 (arch/x86/entry/syscall_64.c:94)\n entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)\n Kernel panic - not syncing: Fatal exception in interrupt"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c"
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],
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"versions": [
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{
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"version": "378e25357ac78ad02fbc98bec9b4e3baaa916c5c",
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"lessThan": "5aaa7409c1b4ca4c60d66e2afa99703bf4eb7ddd",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "378e25357ac78ad02fbc98bec9b4e3baaa916c5c",
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"lessThan": "9b78ab84ddf97c06a8567edb62b6c0fd582f9a62",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "378e25357ac78ad02fbc98bec9b4e3baaa916c5c",
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"lessThan": "9d18c6c6cd1666b2cb7915cad052e22abf520997",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "378e25357ac78ad02fbc98bec9b4e3baaa916c5c",
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"lessThan": "4bcef54e4a3355a62d9ad90729fe563435ec76c3",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "378e25357ac78ad02fbc98bec9b4e3baaa916c5c",
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"lessThan": "b14c22c31d9e30f38ea1693ac06d318f32258f5d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "378e25357ac78ad02fbc98bec9b4e3baaa916c5c",
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"lessThan": "7abe769e72c792e5f9eb273813eb3ecd8389854c",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "378e25357ac78ad02fbc98bec9b4e3baaa916c5c",
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"lessThan": "200460a0793dc6af97d3b36d92ac245350ac26fc",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "378e25357ac78ad02fbc98bec9b4e3baaa916c5c",
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"lessThan": "a66734a1c5e36525ea07e9f4547fddc51e916de3",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c"
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],
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"versions": [
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{
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"version": "4.17",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.17",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.270",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.221",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.188",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.157",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.110",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.52",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2.6",
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"lessThanOrEqual": "7.2.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.3",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.17",
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"versionEndExcluding": "5.10.270"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.17",
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"versionEndExcluding": "5.15.221"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.17",
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"versionEndExcluding": "6.1.188"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.17",
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"versionEndExcluding": "6.6.157"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.17",
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"versionEndExcluding": "6.12.110"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.17",
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"versionEndExcluding": "6.18.52"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.17",
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"versionEndExcluding": "7.2.6"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.17",
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"versionEndExcluding": "7.3"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/5aaa7409c1b4ca4c60d66e2afa99703bf4eb7ddd"
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},
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{
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"url": "https://git.kernel.org/stable/c/9b78ab84ddf97c06a8567edb62b6c0fd582f9a62"
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},
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{
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"url": "https://git.kernel.org/stable/c/9d18c6c6cd1666b2cb7915cad052e22abf520997"
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},
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{
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"url": "https://git.kernel.org/stable/c/4bcef54e4a3355a62d9ad90729fe563435ec76c3"
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},
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{
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"url": "https://git.kernel.org/stable/c/b14c22c31d9e30f38ea1693ac06d318f32258f5d"
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},
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{
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"url": "https://git.kernel.org/stable/c/7abe769e72c792e5f9eb273813eb3ecd8389854c"
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},
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{
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"url": "https://git.kernel.org/stable/c/200460a0793dc6af97d3b36d92ac245350ac26fc"
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},
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{
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"url": "https://git.kernel.org/stable/c/a66734a1c5e36525ea07e9f4547fddc51e916de3"
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}
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],
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"title": "net: qualcomm: rmnet: restore skb->dev on deaggregated frames",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |