{"api_version":"1","generated_at":"2026-06-25T05:35:19+00:00","cve":"CVE-2026-53069","urls":{"html":"https://cve.report/CVE-2026-53069","api":"https://cve.report/api/cve/CVE-2026-53069.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53069","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53069"},"summary":{"title":"net, bpf: fix null-ptr-deref in xdp_master_redirect() for down master","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet, bpf: fix null-ptr-deref in xdp_master_redirect() for down master\n\nsyzkaller reported a kernel panic in bond_rr_gen_slave_id() reached via\nxdp_master_redirect(). Full decoded trace:\n\n  https://syzkaller.appspot.com/bug?extid=80e046b8da2820b6ba73\n\nbond_rr_gen_slave_id() dereferences bond->rr_tx_counter, a per-CPU\ncounter that bonding only allocates in bond_open() when the mode is\nround-robin. If the bond device was never brought up, rr_tx_counter\nstays NULL.\n\nThe XDP redirect path can still reach that code on a bond that was\nnever opened: bpf_master_redirect_enabled_key is a global static key,\nso as soon as any bond device has native XDP attached, the\nXDP_TX -> xdp_master_redirect() interception is enabled for every\nslave system-wide. The path xdp_master_redirect() ->\nbond_xdp_get_xmit_slave() -> bond_xdp_xmit_roundrobin_slave_get() ->\nbond_rr_gen_slave_id() then runs against a bond that has no\nrr_tx_counter and crashes.\n\nFix this in the generic xdp_master_redirect() by refusing to call into\nthe master's ->ndo_xdp_get_xmit_slave() when the master device is not\nup. IFF_UP is only set after ->ndo_open() has successfully returned,\nso this reliably excludes masters whose XDP state has not been fully\ninitialized. Drop the frame with XDP_ABORTED so the exception is\nvisible via trace_xdp_exception() rather than silently falling through.\nThis is not specific to bonding: any current or future master that\ndefers XDP state allocation to ->ndo_open() is protected.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-24 17:17:20","updated_at":"2026-06-24 17:17:20"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/866d3d9b87751b1944168fd82615505e0c0fd6cf","name":"https://git.kernel.org/stable/c/866d3d9b87751b1944168fd82615505e0c0fd6cf","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ea690b3b6e58ae00979af8195b4cc24df466b65e","name":"https://git.kernel.org/stable/c/ea690b3b6e58ae00979af8195b4cc24df466b65e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1921f91298d1388a0bb9db8f83800c998b649cb3","name":"https://git.kernel.org/stable/c/1921f91298d1388a0bb9db8f83800c998b649cb3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/183128da0406b1c10e6f60b7b9fe70788b9c8c1d","name":"https://git.kernel.org/stable/c/183128da0406b1c10e6f60b7b9fe70788b9c8c1d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3128b294b426533c8d9162187446d93a8a160359","name":"https://git.kernel.org/stable/c/3128b294b426533c8d9162187446d93a8a160359","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/acbf45bd584d924b320bee2a7fe2a26f64904d95","name":"https://git.kernel.org/stable/c/acbf45bd584d924b320bee2a7fe2a26f64904d95","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7bad93e99737e4a5c0c14ac50c05152cf4e28022","name":"https://git.kernel.org/stable/c/7bad93e99737e4a5c0c14ac50c05152cf4e28022","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53069","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53069","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 879af96ffd72706c6e3278ea6b45b0b0e37ec5d7 3128b294b426533c8d9162187446d93a8a160359 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 879af96ffd72706c6e3278ea6b45b0b0e37ec5d7 acbf45bd584d924b320bee2a7fe2a26f64904d95 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 879af96ffd72706c6e3278ea6b45b0b0e37ec5d7 866d3d9b87751b1944168fd82615505e0c0fd6cf git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 879af96ffd72706c6e3278ea6b45b0b0e37ec5d7 183128da0406b1c10e6f60b7b9fe70788b9c8c1d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 879af96ffd72706c6e3278ea6b45b0b0e37ec5d7 7bad93e99737e4a5c0c14ac50c05152cf4e28022 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 879af96ffd72706c6e3278ea6b45b0b0e37ec5d7 ea690b3b6e58ae00979af8195b4cc24df466b65e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 879af96ffd72706c6e3278ea6b45b0b0e37ec5d7 1921f91298d1388a0bb9db8f83800c998b649cb3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.209 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.175 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.141 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.91 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.33 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.10 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/core/filter.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3128b294b426533c8d9162187446d93a8a160359","status":"affected","version":"879af96ffd72706c6e3278ea6b45b0b0e37ec5d7","versionType":"git"},{"lessThan":"acbf45bd584d924b320bee2a7fe2a26f64904d95","status":"affected","version":"879af96ffd72706c6e3278ea6b45b0b0e37ec5d7","versionType":"git"},{"lessThan":"866d3d9b87751b1944168fd82615505e0c0fd6cf","status":"affected","version":"879af96ffd72706c6e3278ea6b45b0b0e37ec5d7","versionType":"git"},{"lessThan":"183128da0406b1c10e6f60b7b9fe70788b9c8c1d","status":"affected","version":"879af96ffd72706c6e3278ea6b45b0b0e37ec5d7","versionType":"git"},{"lessThan":"7bad93e99737e4a5c0c14ac50c05152cf4e28022","status":"affected","version":"879af96ffd72706c6e3278ea6b45b0b0e37ec5d7","versionType":"git"},{"lessThan":"ea690b3b6e58ae00979af8195b4cc24df466b65e","status":"affected","version":"879af96ffd72706c6e3278ea6b45b0b0e37ec5d7","versionType":"git"},{"lessThan":"1921f91298d1388a0bb9db8f83800c998b649cb3","status":"affected","version":"879af96ffd72706c6e3278ea6b45b0b0e37ec5d7","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/core/filter.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.15"},{"lessThan":"5.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.141","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.91","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.209","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.175","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.141","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.91","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.33","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.10","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"5.15","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet, bpf: fix null-ptr-deref in xdp_master_redirect() for down master\n\nsyzkaller reported a kernel panic in bond_rr_gen_slave_id() reached via\nxdp_master_redirect(). Full decoded trace:\n\n  https://syzkaller.appspot.com/bug?extid=80e046b8da2820b6ba73\n\nbond_rr_gen_slave_id() dereferences bond->rr_tx_counter, a per-CPU\ncounter that bonding only allocates in bond_open() when the mode is\nround-robin. If the bond device was never brought up, rr_tx_counter\nstays NULL.\n\nThe XDP redirect path can still reach that code on a bond that was\nnever opened: bpf_master_redirect_enabled_key is a global static key,\nso as soon as any bond device has native XDP attached, the\nXDP_TX -> xdp_master_redirect() interception is enabled for every\nslave system-wide. The path xdp_master_redirect() ->\nbond_xdp_get_xmit_slave() -> bond_xdp_xmit_roundrobin_slave_get() ->\nbond_rr_gen_slave_id() then runs against a bond that has no\nrr_tx_counter and crashes.\n\nFix this in the generic xdp_master_redirect() by refusing to call into\nthe master's ->ndo_xdp_get_xmit_slave() when the master device is not\nup. IFF_UP is only set after ->ndo_open() has successfully returned,\nso this reliably excludes masters whose XDP state has not been fully\ninitialized. Drop the frame with XDP_ABORTED so the exception is\nvisible via trace_xdp_exception() rather than silently falling through.\nThis is not specific to bonding: any current or future master that\ndefers XDP state allocation to ->ndo_open() is protected."}],"providerMetadata":{"dateUpdated":"2026-06-24T16:30:10.930Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/3128b294b426533c8d9162187446d93a8a160359"},{"url":"https://git.kernel.org/stable/c/acbf45bd584d924b320bee2a7fe2a26f64904d95"},{"url":"https://git.kernel.org/stable/c/866d3d9b87751b1944168fd82615505e0c0fd6cf"},{"url":"https://git.kernel.org/stable/c/183128da0406b1c10e6f60b7b9fe70788b9c8c1d"},{"url":"https://git.kernel.org/stable/c/7bad93e99737e4a5c0c14ac50c05152cf4e28022"},{"url":"https://git.kernel.org/stable/c/ea690b3b6e58ae00979af8195b4cc24df466b65e"},{"url":"https://git.kernel.org/stable/c/1921f91298d1388a0bb9db8f83800c998b649cb3"}],"title":"net, bpf: fix null-ptr-deref in xdp_master_redirect() for down master","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53069","datePublished":"2026-06-24T16:30:10.930Z","dateReserved":"2026-06-09T07:44:35.382Z","dateUpdated":"2026-06-24T16:30:10.930Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-24 17:17:20","lastModifiedDate":"2026-06-24 17:17:20","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53069","Ordinal":"1","Title":"net, bpf: fix null-ptr-deref in xdp_master_redirect() for down m","CVE":"CVE-2026-53069","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53069","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet, bpf: fix null-ptr-deref in xdp_master_redirect() for down master\n\nsyzkaller reported a kernel panic in bond_rr_gen_slave_id() reached via\nxdp_master_redirect(). Full decoded trace:\n\n  https://syzkaller.appspot.com/bug?extid=80e046b8da2820b6ba73\n\nbond_rr_gen_slave_id() dereferences bond->rr_tx_counter, a per-CPU\ncounter that bonding only allocates in bond_open() when the mode is\nround-robin. If the bond device was never brought up, rr_tx_counter\nstays NULL.\n\nThe XDP redirect path can still reach that code on a bond that was\nnever opened: bpf_master_redirect_enabled_key is a global static key,\nso as soon as any bond device has native XDP attached, the\nXDP_TX -> xdp_master_redirect() interception is enabled for every\nslave system-wide. The path xdp_master_redirect() ->\nbond_xdp_get_xmit_slave() -> bond_xdp_xmit_roundrobin_slave_get() ->\nbond_rr_gen_slave_id() then runs against a bond that has no\nrr_tx_counter and crashes.\n\nFix this in the generic xdp_master_redirect() by refusing to call into\nthe master's ->ndo_xdp_get_xmit_slave() when the master device is not\nup. IFF_UP is only set after ->ndo_open() has successfully returned,\nso this reliably excludes masters whose XDP state has not been fully\ninitialized. Drop the frame with XDP_ABORTED so the exception is\nvisible via trace_xdp_exception() rather than silently falling through.\nThis is not specific to bonding: any current or future master that\ndefers XDP state allocation to ->ndo_open() is protected.","Type":"Description","Title":"net, bpf: fix null-ptr-deref in xdp_master_redirect() for down m"}]}}}