{"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":"2026-06-28T06:38:53.474Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-28T06:38:53.474Z"},"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."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH"}}],"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"}}}}