{"id":"CVE-2025-38035","revision":"c024090f743d4fd8a6a552372a4c8c7d","records":[{"revision":"c024090f743d4fd8a6a552372a4c8c7d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-38035","aliases":[],"title":"nvmet-tcp: don't restore null sk_state_change","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-tcp: don't restore null sk_state_change\n\nqueue->state_change is set as part of nvmet_tcp_set_queue_sock(), but if\nthe TCP connection isn't established when nvmet_tcp_set_queue_sock() is\ncalled then queue->state_change isn't set and sock->sk->sk_state_change\nisn't replaced.\n\nAs such we don't need to restore sock->sk->sk_state_change if\nqueue->state_change is NULL.\n\nThis avoids NULL pointer dereferences such as this:\n\n[ 286.462026][ C0] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[ 286.462814][ C0] #PF: supervisor instruction fetch in kernel mode\n[ 286.463796][ C0] #PF: error_code(0x0010) - not-present page\n[ 286.464392][ C0] PGD 8000000140620067 P4D 8000000140620067 PUD 114201067 PMD 0\n[ 286.465086][ C0] Oops: Oops: 0010 [#1] SMP KASAN PTI\n[ 286.465559][ C0] CPU: 0 UID: 0 PID: 1628 Comm: nvme Not tainted 6.15.0-rc2+ #11 PREEMPT(voluntary)\n[ 286.466393][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-3.fc41 04/01/2014\n[ 286.467147][ C0] RIP: 0010:0x0\n[ 286.467420][ C0] Code: Unable to access opcode bytes at 0xffffffffffffffd6.\n[ 286.467977][ C0] RSP: 0018:ffff8883ae008580 EFLAGS: 00010246\n[ 286.468425][ C0] RAX: 0000000000000000 RBX: ffff88813fd34100 RCX: ffffffffa386cc43\n[ 286.469019][ C0] RDX: 1ffff11027fa68b6 RSI: 0000000000000008 RDI: ffff88813fd34100\n[ 286.469545][ C0] RBP: ffff88813fd34160 R08: 0000000000000000 R09: ffffed1027fa682c\n[ 286.470072][ C0] R10: ffff88813fd34167 R11: 0000000000000000 R12: ffff88813fd344c3\n[ 286.470585][ C0] R13: ffff88813fd34112 R14: ffff88813fd34aec R15: ffff888132cdd268\n[ 286.471070][ C0] FS: 00007fe3c04c7d80(0000) GS:ffff88840743f000(0000) knlGS:0000000000000000\n[ 286.471644][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 286.472543][ C0] CR2: ffffffffffffffd6 CR3: 000000012daca000 CR4: 00000000000006f0\n[ 286.473500][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 286.474467][ C0] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7: 0000000000000400\n[ 286.475453][ C0] Call Trace:\n[ 286.476102][ C0] \n[ 286.476719][ C0] tcp_fin+0x2bb/0x440\n[ 286.477429][ C0] tcp_data_queue+0x190f/0x4e60\n[ 286.478174][ C0] ? __build_skb_around+0x234/0x330\n[ 286.478940][ C0] ? rcu_is_watching+0x11/0xb0\n[ 286.479659][ C0] ? __pfx_tcp_data_queue+0x10/0x10\n[ 286.480431][ C0] ? tcp_try_undo_loss+0x640/0x6c0\n[ 286.481196][ C0] ? seqcount_lockdep_reader_access.constprop.0+0x82/0x90\n[ 286.482046][ C0] ? kvm_clock_get_cycles+0x14/0x30\n[ 286.482769][ C0] ? ktime_get+0x66/0x150\n[ 286.483433][ C0] ? rcu_is_watching+0x11/0xb0\n[ 286.484146][ C0] tcp_rcv_established+0x6e4/0x2050\n[ 286.484857][ C0] ? rcu_is_watching+0x11/0xb0\n[ 286.485523][ C0] ? ipv4_dst_check+0x160/0x2b0\n[ 286.486203][ C0] ? __pfx_tcp_rcv_established+0x10/0x10\n[ 286.486917][ C0] ? lock_release+0x217/0x2c0\n[ 286.487595][ C0] tcp_v4_do_rcv+0x4d6/0x9b0\n[ 286.488279][ C0] tcp_v4_rcv+0x2af8/0x3e30\n[ 286.488904][ C0] ? raw_local_deliver+0x51b/0xad0\n[ 286.489551][ C0] ? rcu_is_watching+0x11/0xb0\n[ 286.490198][ C0] ? __pfx_tcp_v4_rcv+0x10/0x10\n[ 286.490813][ C0] ? __pfx_raw_local_deliver+0x10/0x10\n[ 286.491487][ C0] ? __pfx_nf_confirm+0x10/0x10 [nf_conntrack]\n[ 286.492275][ C0] ? rcu_is_watching+0x11/0xb0\n[ 286.492900][ C0] ip_protocol_deliver_rcu+0x8f/0x370\n[ 286.493579][ C0] ip_local_deliver_finish+0x297/0x420\n[ 286.494268][ C0] ip_local_deliver+0x168/0x430\n[ 286.494867][ C0] ? __pfx_ip_local_deliver+0x10/0x10\n[ 286.495498][ C0] ? __pfx_ip_local_deliver_finish+0x10/0x10\n[ 286.496204][ C0] ? ip_rcv_finish_core+0x19a/0x1f20\n[ 286.496806][ C0] ? lock_release+0x217/0x2c0\n[ 286.497414][ C0] ip_rcv+0x455/0x6e0\n[ 286.497945][ C0] ? __pfx_ip_rcv+0x10/0x10\n[ \n---truncated---","state":0,"publishedAt":"2025-06-18T09:33:22.244+00:00","modifiedAt":"2026-10-15T21:52:06.653+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/nvme/target/tcp.c\"\n ],\n \"versions\": [\n {\n \"version\": \"872d26a391da92ed8f0c0f5cb5fef428067b7f30\",\n \"lessThan\": \"6265538446e2426f4bf3b57e91d7680b2047ddd9\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"872d26a391da92ed8f0c0f5cb5fef428067b7f30\",\n \"lessThan\": \"17e58be5b49f58bf17799a504f55c2d05ab2ecdc\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"872d26a391da92ed8f0c0f5cb5fef428067b7f30\",\n \"lessThan\": \"fc01b547c3f8bfa6e1d23cd5a2c63c736e8c3e4e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"872d26a391da92ed8f0c0f5cb5fef428067b7f30\",\n \"lessThan\": \"c240375587ddcc80e1022f52ee32b946bbc3a639\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"872d26a391da92ed8f0c0f5cb5fef428067b7f30\",\n \"lessThan\": \"3a982ada411b8c52695f1784c3f4784771f30209\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"872d26a391da92ed8f0c0f5cb5fef428067b7f30\",\n \"lessThan\": \"ec462449f4cf616b0aa2ed119f5f44b5fdfcefab\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"872d26a391da92ed8f0c0f5cb5fef428067b7f30\",\n \"lessThan\": \"a21cb31642ffc84ca4ce55028212a96f72f54d30\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"872d26a391da92ed8f0c0f5cb5fef428067b7f30\",\n \"lessThan\": \"46d22b47df2741996af277a2838b95f130436c13\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/nvme/target/tcp.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.0\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.0\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.294\",\n \"lessThanOrEqual\": \"5.4.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.238\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.185\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.141\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.93\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.31\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.14.9\",\n \"lessThanOrEqual\": \"6.14.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.15\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/6265538446e2426f4bf3b57e91d7680b2047ddd9","https://git.kernel.org/stable/c/17e58be5b49f58bf17799a504f55c2d05ab2ecdc","https://git.kernel.org/stable/c/fc01b547c3f8bfa6e1d23cd5a2c63c736e8c3e4e","https://git.kernel.org/stable/c/c240375587ddcc80e1022f52ee32b946bbc3a639","https://git.kernel.org/stable/c/3a982ada411b8c52695f1784c3f4784771f30209","https://git.kernel.org/stable/c/ec462449f4cf616b0aa2ed119f5f44b5fdfcefab","https://git.kernel.org/stable/c/a21cb31642ffc84ca4ce55028212a96f72f54d30","https://git.kernel.org/stable/c/46d22b47df2741996af277a2838b95f130436c13"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-38035","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-38035","identifiers":["CVE-2025-38035"]},"retained":false,"historicalAffected":[]}],"coverage":[]}