{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53069", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.382Z", "datePublished": "2026-06-24T16:30:10.930Z", "dateUpdated": "2026-06-24T16:30:10.930Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-24T16:30:10.930Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/core/filter.c"], "versions": [{"version": "879af96ffd72706c6e3278ea6b45b0b0e37ec5d7", "lessThan": "3128b294b426533c8d9162187446d93a8a160359", "status": "affected", "versionType": "git"}, {"version": "879af96ffd72706c6e3278ea6b45b0b0e37ec5d7", "lessThan": "acbf45bd584d924b320bee2a7fe2a26f64904d95", "status": "affected", "versionType": "git"}, {"version": "879af96ffd72706c6e3278ea6b45b0b0e37ec5d7", "lessThan": "866d3d9b87751b1944168fd82615505e0c0fd6cf", "status": "affected", "versionType": "git"}, {"version": "879af96ffd72706c6e3278ea6b45b0b0e37ec5d7", "lessThan": "183128da0406b1c10e6f60b7b9fe70788b9c8c1d", "status": "affected", "versionType": "git"}, {"version": "879af96ffd72706c6e3278ea6b45b0b0e37ec5d7", "lessThan": "7bad93e99737e4a5c0c14ac50c05152cf4e28022", "status": "affected", "versionType": "git"}, {"version": "879af96ffd72706c6e3278ea6b45b0b0e37ec5d7", "lessThan": "ea690b3b6e58ae00979af8195b4cc24df466b65e", "status": "affected", "versionType": "git"}, {"version": "879af96ffd72706c6e3278ea6b45b0b0e37ec5d7", "lessThan": "1921f91298d1388a0bb9db8f83800c998b649cb3", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/core/filter.c"], "versions": [{"version": "5.15", "status": "affected"}, {"version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.141", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.91", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.33", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "5.15.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.6.141"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.12.91"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "7.1"}]}]}], "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"}}}}

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